CN214126410U - Ecological restoration system in sea grass field of area eel grass in under tide - Google Patents
Ecological restoration system in sea grass field of area eel grass in under tide Download PDFInfo
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- CN214126410U CN214126410U CN202022961196.4U CN202022961196U CN214126410U CN 214126410 U CN214126410 U CN 214126410U CN 202022961196 U CN202022961196 U CN 202022961196U CN 214126410 U CN214126410 U CN 214126410U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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Abstract
The utility model relates to marine ecological remediation device field, a sea grass meadow ecological remediation system in tidal zone waters specifically says so. The system comprises a power supply system, an illumination system and a support system; the power supply system is used for supplying electric quantity to the illumination system; the power supply system is connected with the illumination system and the support system through a fixing rope; the illumination system is used for providing underwater illumination for the eel grass seaweed bed; the illumination system is mounted on the support system; the supporting system is used for setting the position of the illumination system; the supporting system is fixed in the range of the seabed under the water surface. The utility model discloses a fix entire system with fixed raft frame, fixed rope, peg, haulage rope and flotation device. The waterproof LED light source can be fixed in a deep sea area with large ocean current, and electric leakage caused by electric wire abrasion due to dragging under the condition of large ocean current is avoided.
Description
Technical Field
The utility model relates to marine ecological remediation device field, a sea grass meadow ecological remediation system in tidal zone waters specifically says so.
Background
The seashore (seaweeds meadows) ecosystem together with the mangrove and coral reef ecosystems are considered to be three typical marine ecosystems offshore. And international research results show that the ecological service value of the seaweed field is obviously higher than that of mangroves and coral reefs. As used herein, the term "seaweed" refers to the only angiosperm submerged in shallow sea water, which has differentiated root, stem, leaf, flower and seed organs, and is distinct from "seaweed" (e.g., kelp, enteromorpha, etc.) which is a lower plant.
The luxurious pasture of seaweeds, like forests on land, is an important sign of a healthy marine environment, being a precious "submarine grassland" or "submarine forest". The sea grass field is a high productivity area, can provide good habitat, seedling raising field and shelter for marine organisms such as fishes, shrimps, crabs and shellfish, and is also beneficial to the inhabitation of sea birds; while providing an important food source for many living beings. The meadow is also one of the most efficient carbon capture and sequestration systems on earth, and the united nations organization believes that: the most urgent action for dealing with climate change is to maintain and recover the blue carbon sink, and the sea grass, the mangrove forest and the salt marsh are taken priority.
The temperate zone sea area in north China, especially the Shandong coastal area, is an important area for the distribution of seaweed. Eel (Zostera marina L.) is a sea grass which is most widely distributed and most abundant in quantity in the coastal areas in the north of China, and is only distributed in temperate sea areas in the north of China, such as coastal water areas of Shandong, Hebei, Liaoning and the like. Eel grass (eelgrass) is commonly known as zostera marina, and eel grass farms are good places where sea economic organisms such as sea cucumbers, shellfish (including octopus), shrimps, crabs and fishes inhabit, breed and hide. Eel grass is a perennial herb plant, mainly sinks on muddy shallow water seabed with a gentle topography, is distributed in shallow water areas from intertidal zone to sub-tidal zone, has the maximum water depth of 30 meters, has long and thin leaves in a strip shape, is commonly called as sea leek, and has the leaf length of more than 3 meters.
In the temperate sea area in the north of China, such as coastal sea in Shandong, eel grass sea grass farms are once very luxuriant, but nowadays, sea grass beds are seriously degraded due to the influence of human activities (the damage of habitats, the water pollution and the reduction of transparency caused by the increase of turbidity), the sea grass beds are sparsely distributed in a block shape and are mostly not connected into pieces, the water depth of the sea grass bed distribution is shallow, the sea grass beds are mostly distributed before 6 meters, and the sea grass beds with deeper water depth are seriously degraded. In northern China, coastal fishermen often use eel grass as a material for building roofs. The sea grass house is a unique symbolic folk-custom symbol of the Jiaodong, is also considered as one of the most representative ecological residences in the world, and is mainly distributed in coastal areas such as the Weihai, the tobacco station and the Qingdao. This illustrates, from another side, how luxurious sea weeds are, but now much remains. It is estimated that the Shandong coastal eel grass meadow is degraded by more than 80%. For a long time, the important role of the seaweed in the sea is not paid enough attention, the area of the seaweed field is reduced in the global range, a plurality of sea areas are endangered to extinction and the survival of other marine organisms, the biodiversity is reduced, and the coastal ecosystem is also more fragile. In recent years, the important role of seaweed in marine ecosystems has been recognized, and importance has been attached to the protection of seaweed ecosystems and the ecological restoration of degraded seaweed ecosystems.
At present, the problem of insufficient illumination of the sea bed exists in the restoration of the deteriorated sea grass bed in deeper water areas (the lower part of an intertidal zone and the large part of an underwater zone), but various methods for planting sea grass into the sea bed exist in the prior art, for example, a device for sowing an underwater seeder and a system for restoring sea grass in shallow water areas, and then transplanting the restored sea grass field into the sea bed again is used for restoring the sea grass field, but the sea grass is always planted underwater in the prior art, and the sea grass field of eel grass can be prevented from being deteriorated by continuous illumination, so that the design of the device for expanding the sea grass bed and continuously illuminating the sea grass bed in the sea grass field of eel grass is particularly important.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a deeper waters seabed eel grass ecological restoration system for the recovery or the reconstruction of the deeper waters eel grass meadow of the sub-tidal zone.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: an ecological restoration system for an eel grass sea grass field in an underwater zone comprises a power supply system, an illumination system and a support system;
the power supply system is connected with the illumination system and the support system through a fixing rope; the illumination system is mounted on the support system; the supporting system is fixed in the range of the seabed under the water surface;
the supporting system comprises a stainless steel frame, a peg and a traction rope; the peg is fixed at the seabed of an eel grass bed, the open end of the stainless steel frame is inserted into the seabed, a plurality of traction ropes are arranged on the horizontal portion of the stainless steel frame, the space between every two traction ropes is equal, the traction ropes fix the illumination system right above the eel grass bed through a tying belt, and one end of each traction rope is connected with the peg.
The power supply system comprises a floating device, a solar cell and an LED power supply control device connected with the solar cell;
the solar cell is installed on the floating device, the floating device is arranged on the water surface and is connected with the supporting system through a fixing rope, the other end of the fixing rope is connected with the offshore platform, and the LED power supply control device is connected with the illumination system.
The floating device is of a square plate structure, and four corners of the floating device are respectively connected with a fixed rope.
The stainless steel frames are arranged in parallel, and the row spacing between the stainless steel frames is equal.
The illumination system comprises a stainless steel pipe, a stainless steel bent pipe and a waterproof LED light source;
the side wall of the stainless steel pipe is provided with six through holes, four mounting through holes are uniformly distributed on the side wall of the stainless steel pipe along the circumferential direction, and the side wall of the stainless steel pipe is also provided with two traction rope fixing holes;
the traction rope sequentially penetrates through the traction rope fixing holes to fix the stainless steel pipe on the traction rope;
the two ends of the stainless steel bent pipe are provided with internal threads, one end of the stainless steel bent pipe is in threaded connection with the waterproof LED light source, and the other end of the stainless steel bent pipe is connected with the installation through hole of the stainless steel pipe;
and the input end of the waterproof LED light source is connected with the LED power supply control device.
The illumination system comprises a stainless steel pipe, a stainless steel bent pipe and a waterproof LED light source;
the side wall of the stainless steel pipe is provided with six through holes, four mounting through holes are uniformly distributed on the side wall of the stainless steel pipe along the circumferential direction, and the side wall of the stainless steel pipe is also provided with two traction rope fixing holes;
the traction rope penetrates through the traction rope fixing hole, and the stainless steel pipe is fixed on the traction rope through a binding belt;
the two ends of the stainless steel bent pipe are provided with internal threads, one end of the stainless steel bent pipe is in threaded connection with the waterproof LED light source, and the other end of the stainless steel bent pipe is connected with the installation through hole of the stainless steel pipe;
and the input end of the waterproof LED light source is connected with the LED power supply control device.
The stainless steel bent pipe is an L-shaped bent pipe, and the stainless steel bent pipe is divided into two parts, namely an elbow part and a straight pipe part;
one end of the straight pipe part of the stainless steel elbow pipe is in threaded connection with the installation through hole, one end of the elbow part is connected with the waterproof LED light source, and the waterproof LED light source is arranged above the seaweed bed.
The straight pipe part of each stainless elbow pipe is connected to the installation through hole of the stainless steel pipe and is positioned on the same plane.
The utility model has the following beneficial effects and advantages:
1. the utility model discloses a fix entire system with stainless steel frame, peg, haulage rope and flotation device. This has the effect that the waterproof LED light source can be fixed in a deep sea area where ocean currents are large.
2. Through the utility model discloses, solved the deep sea area eel grass and transplant the problem of restoreing the illumination not enough, provide a simple and easy system for the recovery or the reconstruction in eel grass sea grass field under this environment.
3. Simultaneously the utility model provides a facility device utensil detachability can retrieve reuse, therefore can practice thrift the cost, can not constitute the pollution to the sea area moreover, and the material that uses in the outer device in addition, like stainless steel frame, peg, haulage rope and flotation device can not constitute the pollution to marine environment.
4. The eel grass bed can be restored in a deeper sea area by adopting the utility model, the problem of insufficient illumination for eel grass transplantation restoration in the deeper sea area is solved, and the recovery or reconstruction of the eel grass bed in the deeper water area under the tide can be conveniently and rapidly carried out by combining the simple and effective eel grass restoration system of the utility model; and simultaneously, the utility model discloses the facility device can retrieve reuse, therefore can practice thrift the cost, and the material that uses can not constitute the pollution to the sea area.
Drawings
FIG. 1 is a schematic structural view of an ecological restoration implementation device for an eel grass sea grass field in a deep water area of an underwater zone provided by an embodiment of the utility model;
FIG. 2 is a schematic view of the waterproof LED light source device of the present invention;
the system comprises a stainless steel frame 1, a traction rope 2, a waterproof wire 3, an illumination system 4, an eel grass bed 5, a peg 6, a floating device 7, an LED power supply control device 8, a solar cell panel 9, a fixing rope 10, a sea surface 11, a traction rope fixing hole 12, a stainless steel pipe 13, a straight pipe part 14, a bent pipe part 15, a waterproof LED light source 16 and an installation through hole 17, wherein the stainless steel frame is a stainless steel frame;
fig. 3 is a schematic structural view of a supporting system according to embodiment 2 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1:
as shown in fig. 1, the present invention relates to a power supply system, an illumination system, a support system and a seaweed bed system. The power supply system and the illumination system are fixed on the support system; the illumination system is located underwater and connected with the water surface power supply system through a wire, and the seaweed bed system is constructed by a seaweed rhizome and stone binding transplantation method.
The power supply system comprises a solar battery 9, an electric wire 9 and an LED power supply control device 8; the solar battery 9 is connected with the LED power supply control device 8 through an electric wire 9, and the LED power supply control device 8 is connected with the illumination system through an electric wire; the solar cell 9 is fixed to the flotation device 7. The power of the solar cell 8 is 200W, and the size is as follows: 1335mm 990mm 40 mm.
The power supply system is used for supplying electric quantity to the illumination system; the power supply system is connected with the illumination system and is connected with the support system through a fixing rope 10;
the illumination system is used for providing underwater illumination for the eel grass seaweed bed; the illumination system is arranged on the support system;
a support system for setting a position of the illumination system; the supporting system is fixed in the range of the seabed under the water surface.
The power supply system comprises a floating device 7, a solar battery 9 and an LED power supply control device 8 connected with the solar battery 9;
the solar cell 9 is installed on the floating device 7, the floating device 7 is arranged on the water surface and is connected with the supporting system through a fixing rope 10, and the LED power supply control device 8 is connected with the illumination system.
As shown in fig. 2, the waterproof LED light source device is schematically illustrated, and the illumination system includes a stainless steel tube 13, a stainless steel bent tube, and a waterproof LED light source 16;
four mounting through holes 17 are uniformly distributed on the side wall of the stainless steel pipe 13 along the circumferential direction, and two traction rope fixing holes 12 are further formed in the side wall of the stainless steel pipe 13;
the hauling rope 2 passes through the hauling rope fixing hole 12 and fixes the stainless steel pipe 13 on the hauling rope 2 through a binding belt;
two ends of the stainless steel bent pipe are provided with internal threads, one end of the stainless steel bent pipe is in threaded connection with the waterproof LED light source 16, and the other end of the stainless steel bent pipe is connected with the installation through hole 17 of the stainless steel pipe 13;
the input end of the waterproof LED light source 16 is connected with the LED power supply control device 8.
The stainless steel elbow is an L-shaped elbow, and the stainless steel elbow is divided into two parts, namely an elbow part 15 and a straight pipe part 14;
one end of a straight pipe part 14 of the stainless steel elbow is in threaded connection with the mounting through hole 17, one end of an elbow part 15 of the stainless steel elbow is connected with a waterproof LED light source 16, and the waterproof LED light source 16 is arranged above the seaweed bed.
Wherein, the stainless steel tube 13 is 10cm long, the external diameter is 1.5cm and has external screw thread, wherein the upward and downward through tubes are opened with a hauling cable fixing hole, the stainless steel tube 13 is provided with four stainless steel bent tubes, each stainless steel bent tube has a length of 1m and an internal diameter of 1.5cm, one end of the stainless steel bent tube is provided with internal screw thread, the other end is provided with a 90-degree elbow, and the elbow is provided with internal screw thread; the straight pipe parts 14 of the four stainless steel bent pipes are connected to the six-way pipe and are positioned on the same plane, the bent pipes face the direction of the lower-way pipe, the waterproof LED light sources 16 are connected to the bent pipe parts 15, and the four waterproof LED light sources 16 are connected in the formed six-way pipe through electric wires in the stainless steel pipes and are finally connected with a power supply system. The waterproof LED light source 16 adopts a waterproof spotlight, and the joint of the waterproof LED light source 16 and the waterproof wire 3 is wound by a waterproof adhesive tape to be sealed so as to prevent water leakage.
The supporting system comprises a stainless steel frame 1, a peg 6 and a traction rope 2; the peg 6 is fixed in the seabed of eel grass sea grass bed department, and the stainless steel frame 1 open end inserts the seabed in order to realize fixing, is equipped with many haulage ropes 2 on the stainless steel frame 1 horizontal part, and the interval between every haulage rope 2 equals, and haulage rope 2 passes through the ribbon and fixes lighting system directly over the eel grass bed, and haulage rope one end links to each other with peg 6 to realize straightening the haulage rope 2.
The stainless steel frames 1 are provided with a plurality of groups, the stainless steel frames 1 are arranged in parallel, and the row spacing between the stainless steel frames 1 is equal.
Example 2:
as shown in fig. 3, which is a schematic structural view of a supporting system according to embodiment 2 of the present invention, in another embodiment, the supporting system can be equivalently replaced by a system comprising a buoy, a buoy connecting cable, a rope suspension system, a floating boom, a peg cable, a peg and a traction rope; the peg for the peg is fixed below the water surface, and the peg for the peg is connected with a floating boom through a peg cable, and the floating boom is fixed on a floating connecting cable; a plurality of floats are arranged on the water surface right above the eel grass sea grass bed in parallel and are connected through float connecting cables; each buoy is connected with a peg at the bottom of the sea at the seaweed bed through a traction rope; the traction rope is connected with an illumination system. The size of the main body of the floating device is 5m by 0.5 m;
the seaweed bed system is mainly constructed by transplanting seaweed and stone-bound transplanting method, 3m × 3m seaweed plates are transplanted under each waterproof LED light source, and the total transplanting area is more than 50 hectare. The light supplementing and lighting time of the seaweed bed is adjusted according to the season and the growth condition of the seaweed bed.
The utility model discloses a theory of operation:
fixing a stainless steel frame with the length of 30m and the height of 4m on the seabed, wherein the burying depth is 1m, connecting the stainless steel frame and the seabed by adopting a conventional polyethylene traction rope 2 and a peg 6, the length of the traction rope 2 is 3m, fixing a waterproof LED light source 16 at the position of the traction rope 2 away from the seabed by 2 m, and an illumination system comprises a stainless steel pipe 13, a waterproof electric wire 3 and a waterproof LED light source 16; wherein the stainless steel elbow length is 10cm, the external diameter is 1.5cm and has external screw thread, wherein the upward and downward siphunculus opens and has a haulage rope fixing hole, in order to fix on haulage rope 2, each stainless steel tube 13 is furnished with four stainless steel elbows, each stainless steel elbow length is 1m, the internal diameter is 1.5cm, one end of the stainless steel elbow has internal screw thread, another end has 90 degrees elbow part 15, the elbow length is 10cm, both ends have internal screw thread; the straight pipe parts 14 of the four stainless steel bent pipes are connected to the stainless steel pipe 13 and are positioned on the same plane, the bent pipes face the direction of the lower through pipe, the waterproof LED light sources 16 are connected to the stainless steel pipe 13 through screws, and the four waterproof LED light sources 16 are connected through the waterproof wires 3 in the stainless steel pipe in a six-way pipe and are finally connected with a power supply system. In order to avoid the damage such as electric leakage caused by the fact that the electric wire is shaken and worn out under the condition of large ocean current, the waterproof electric wire 3 is fixed on the traction rope by the binding belt every 50cm in the vertical walking direction, and the electric wire is fixed on the stainless steel frame 1 by the binding belt every 50cm in the horizontal walking direction. The waterproof LED light source 16 adopts a waterproof spotlight (the illumination intensity reaches 1600lx), and the interface between the waterproof LED light source 16 and the waterproof wire 3 is wound and sealed by a waterproof adhesive tape to prevent water leakage.
The floating device 7 is fixed on the adjacent stainless steel frames 1 through the fixing ropes 10 and is connected with the water platform, the distance between the two raft frames is 5 meters, the length of the traction rope is 2 meters, the length of the traction rope can be properly adjusted according to the distance between the adjacent stainless steel frames 1, and the main body of the floating device 7 is 5m 0.5m (height). The solar battery 9 is connected with the LED power supply device 8 through a wire, the solar battery and the LED power supply device are both fixed on the floating device 7, and the LED power supply control device 8 is connected with the illumination system through the waterproof wire 3; the power of the solar cell 9 is 200W, and the size is 1335mm 990mm 40 mm. Three sets of stainless steel steelframes 1 establish ties and be one row, and a row length 90 meters is laid along the rivers direction, and row interval 10 meters, 5 rows are a transplantation block, and the block interval is 30 meters, arranges 80 blocks altogether.
Claims (8)
1. An ecological restoration system for an eel grass sea grass field in an underwater zone is characterized by comprising a power supply system, an illumination system and a support system;
the power supply system is connected with the illumination system and is connected with the supporting system through a fixing rope (10); the illumination system is mounted on the support system; the supporting system is fixed in the range of the seabed under the water surface;
the supporting system comprises a stainless steel frame (1), a peg (6) and a traction rope (2); the stake (6) is fixed in the seabed of eel grass sea grass bed department, the seabed is inserted to stainless steel frame (1) open end, is equipped with many haulage rope (2) on stainless steel frame (1) horizontal part, and the interval between every haulage rope (2) equals, and haulage rope (2) are through the ribbon with the fixed eel grass sea grass bed of illumination system directly over, haulage rope one end links to each other with peg (6).
2. The system for ecologically remedying the eel grass sea grass field in the underwater zone as claimed in claim 1, wherein the power supply system comprises a floating device (7), a solar cell (9) and an LED power supply control device (8) connected with the solar cell;
the solar cell (9) is installed on the floating device (7), the floating device (7) is arranged on the water surface and is connected with the supporting system through a fixing rope (10), the other end of the fixing rope (10) is connected with the offshore platform, and the LED power supply control device (8) is connected with the illumination system.
3. The system for ecologically restoring the eel grass sea grass field in the underwater zone as claimed in claim 2, wherein the floating device (7) is of a square plate structure, and four corners of the floating device (7) are respectively connected with a fixing rope (10).
4. The system for ecologically restoring the eel grass sea grass field in the underwater zone as claimed in claim 1, wherein the stainless steel frames (1) are arranged in parallel, and the rows of the stainless steel frames (1) are equally spaced.
5. The system for ecologically remediating the eel grass meadow in the underwater area as claimed in claim 1, wherein the lighting system comprises a stainless steel tube (13), a stainless steel elbow, a waterproof LED light source (16);
the side wall of the stainless steel pipe (13) is provided with six through holes, four mounting through holes (17) are uniformly distributed on the side wall of the stainless steel pipe (13) along the circumferential direction, and the side wall of the stainless steel pipe (13) is also provided with two traction rope fixing holes (12);
the traction rope (2) sequentially penetrates through the traction rope fixing holes (12) to fix the stainless steel pipe (13) on the traction rope (2);
two ends of the stainless steel bent pipe are provided with internal threads, one end of the stainless steel bent pipe is in threaded connection with the waterproof LED light source (16), and the other end of the stainless steel bent pipe is connected with the mounting through hole (17) of the stainless steel pipe (13);
the input end of the waterproof LED light source (16) is connected with the LED power supply control device (8).
6. The system for ecologically remediating the eel grass meadow in the underwater area as claimed in claim 1, wherein the lighting system comprises a stainless steel tube (13), a stainless steel elbow, a waterproof LED light source (16);
the side wall of the stainless steel pipe (13) is provided with six through holes, four mounting through holes (17) are uniformly distributed on the side wall of the stainless steel pipe (13) along the circumferential direction, and the side wall of the stainless steel pipe (13) is also provided with two traction rope fixing holes (12);
the hauling rope (2) penetrates through the hauling rope fixing hole (12) and the stainless steel pipe (13) is fixed on the hauling rope (2) through a binding belt;
two ends of the stainless steel bent pipe are provided with internal threads, one end of the stainless steel bent pipe is in threaded connection with the waterproof LED light source (16), and the other end of the stainless steel bent pipe is connected with the mounting through hole (17) of the stainless steel pipe (13);
the input end of the waterproof LED light source (16) is connected with the LED power supply control device (8).
7. The system for restoring ecology of eel grass sea grass fields in the tidal zone according to claim 5, wherein the stainless steel elbow is an L-shaped elbow, and the stainless steel elbow is divided into two parts, namely an elbow part (15) and a straight pipe part (14);
one end of a straight pipe portion (14) of the stainless steel elbow is in threaded connection with the installation through hole (17), one end of an elbow portion (15) is connected with a waterproof LED light source (16), and the waterproof LED light source (16) is arranged above the seaweed bed.
8. The system for restoring ecology in eel grass sea grass fields in tidal zone according to claim 5, wherein the straight pipe portion (14) of each stainless steel elbow pipe is connected to the installation through hole of the stainless steel pipe (13) and then is located on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961196.4U CN214126410U (en) | 2020-12-09 | 2020-12-09 | Ecological restoration system in sea grass field of area eel grass in under tide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961196.4U CN214126410U (en) | 2020-12-09 | 2020-12-09 | Ecological restoration system in sea grass field of area eel grass in under tide |
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| CN214126410U true CN214126410U (en) | 2021-09-07 |
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| CN202022961196.4U Active CN214126410U (en) | 2020-12-09 | 2020-12-09 | Ecological restoration system in sea grass field of area eel grass in under tide |
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