CN108801232A - A kind of construction graphometric square - Google Patents
A kind of construction graphometric square Download PDFInfo
- Publication number
- CN108801232A CN108801232A CN201810888106.8A CN201810888106A CN108801232A CN 108801232 A CN108801232 A CN 108801232A CN 201810888106 A CN201810888106 A CN 201810888106A CN 108801232 A CN108801232 A CN 108801232A
- Authority
- CN
- China
- Prior art keywords
- idler wheel
- ruler section
- section
- ruler
- counting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Abstract
The invention discloses a kind of construction graphometric squares, including support plate, sliding sleeve, fagging, blade, ranging idler wheel, form, the blade includes the first ruler section, second ruler section and third ruler section, first ruler section is linked in the outside of the second ruler section, second ruler section is linked in the outside of third ruler section, the lower part of each side of the first ruler section is hinged with fagging, the sliding sleeve is linked on the first ruler section, support plate is provided between fagging and sliding sleeve, the both ends of support plate are hinged with fagging and sliding sleeve respectively, ranging idler wheel is equipped with above the right side of the third ruler section, the third ruler section front side top is equipped with rectangular form, the position that the third ruler section inner upper corresponds to form is equipped with range counter.The blade of the present invention can stretch, and measurable height is bigger, and graphometric square bottom can be folded, and storage is convenient, and graphometric square oneself can stand, and save manpower, ranging idler wheel is combined with range counter, and measuring range is big, easy to use.
Description
Technical field
The present invention relates to plotting board technical field more particularly to a kind of construction graphometric squares.
Background technology
Surveying Engineering, refer to measure space, the earth various information and draw the topographic maps of various information.Usually exploitation one
Before piece virgin land or progress large-scale construction project, it is necessary to measure topographic mapping by topographical engineer, and other information money is provided
Material, then could carry out the work such as decision, planning and design, so mapping operations are extremely important.Surveying Engineering research and mapping
Object it is very extensive, main various atural objects including earth's surface, landforms and the geological structure of underground, the hydrology, mineral reserve etc., such as mountain
River, river, house, road, vegetation etc..
Under the background that building trade is grown rapidly, in order to fundamentally promote construction engineering quality it is necessary to strengthening to building
Build the attention degree of engineering mapping work.Architectural engineering mapping operations be unable to do without mapping equipment, and current graphometric square has tape measure, straight
Ruler etc., these survey tools have a single function, and volume is bigger, and need people that graphometric square is assisted to stand during measurement,
The measuring range of graphometric square is limited, can not accurately measure curved surface, if the distance measured is long, it is numb to measure comparison
It is tired, to affect measurement accuracy.
Invention content
The object of the present invention is to provide a kind of construction graphometric squares, and graphometric square independent stations are realized by support plate and fagging
It is vertical, 3 ruler sections are set, and increase measures height, and ranging idler wheel is combined with range counter so that it is more accurate, square to measure curved surface
Just.
The technical solution adopted by the present invention to solve the technical problems is：A kind of construction graphometric square, including support plate,
Sliding sleeve, fagging, blade, ranging idler wheel and form, the blade include the first ruler section, the second ruler section and third ruler section, the first ruler
Section is linked in the outside of the second ruler section, and the second ruler section is linked in the outside of third ruler section, each side of the first ruler section
Lower part is hinged with fagging, and the sliding sleeve is linked on the first ruler section, and support plate, the both ends of support plate are provided between fagging and sliding sleeve
Hinged with fagging and sliding sleeve respectively, the third ruler section front side top is equipped with rectangular form, on the third ruler section inside
The position of the corresponding form in side is equipped with range counter, and the range counter includes counting idler wheel, counting roller shaft, carry tooth
Wheel, carry gear shaft, by counting idler wheel axis connection, the carry gear is connected by carry gear shaft the counting idler wheel
It connects, the counting roller shaft and carry gear shaft are fixedly connected with the madial wall of third ruler section, count idler wheel and carry gear
Between engaged transmission, the counting idler wheel at least there are two, the counting idler wheel of the rightmost side is fixedly connected with ranging idler wheel, it is described into
Position gear is each provided between two counting idler wheels.
Preferably, it is equipped with connecting element between adjacent ruler section, between sliding sleeve and the first ruler section, the connecting element includes
Fixed plate, spring and block is pressed, be all provided on the side wall of the first ruler section, the second ruler section and third ruler section fluted, groove is vertical
Face is fixedly connected with fixed plate, and the fixed plate presses block by spring connection, the spring extend through sliding sleeve, the first ruler section and
Second ruler section, the block of pressing is " T " shape elastic material.
Preferably, the length of the support plate is less than the height of the first ruler section and fagging hinged place distance the first ruler section bottom,
Support plate is 90 ° with the angle of the first ruler internode in use state.
Preferably, the cross section of the first ruler section, the second ruler section and third ruler section is rectangle.
Preferably, the counting idler wheel has 5, is from left to right followed successively by the first idler wheel, the second idler wheel, third idler wheel,
Four idler wheels, the 5th idler wheel are equipped with 0 ~ 90 numbers, first idler wheel for counting idler wheel, the second rolling on the counting idler wheel
Wheel, third idler wheel, the 4th idler wheel right side set between each two number there are one carry shifting block, second idler wheel, the
Three idler wheels, the 4th idler wheel, the 5th idler wheel left side are all provided with there are one carry shifting block, and the carry gear has 4, is respectively provided at two
Between counting idler wheel.
Preferably, first idler wheel, the second idler wheel, third rolling road, the 4th idler wheel, the number on the 5th idler wheel generation successively
The kilobit of table range counter registration, hundred, ten, a position, decimal.
Preferably, the length of sliding sleeve inner surface cross section and wide longer and roomy than the first ruler section outer surface cross section
0.1mm ~ 1mm, the length of the first ruler section inner surface cross section and wide than the long and roomy 0.1mm of the second ruler section outer surface cross section
~ 1mm, the length and width of the second ruler section inner surface cross section are than long and roomy 0.1mm ~ 1mm of third ruler section outer surface.
Preferably, the vertical section of the ranging idler wheel is circle, and the length of circumference is 1m.
Preferably, the carry gear is cylinder, and annular array is circumferentially provided on the outer wall of the carry gear
Five deep trouths.
The beneficial effects of the invention are as follows：
It is hinged between first ruler section and fagging, between fagging and support plate, between support plate and sliding sleeve, sliding sleeve can be along the first ruler
Section sliding is right angle between final support plate and the first ruler section, and when use can support measuring scale automatically, save manpower, use completion
Afterwards, sliding sleeve can be stored with fagging to contract along the first ruler section upward sliding, support plate, and occupied space is few when storage, blade
3 ruler sections are may be configured as, increases and measures height, be convenient for measuring.
Ranging idler wheel is pushed to measure the distance of two observation points, it is measurable bigger apart from long, curved surface precision,
Relatively more intuitive by form observed range counter, the engaging structure counted between idler wheel and carry gear is fairly simple, manufacturer
Just, appearance and size is small, and measurable range is bigger.
The length of sliding sleeve inner surface cross section and wide long and roomy 0.1mm ~ 1mm than the first ruler section outer surface cross section,
The length of one ruler section inner surface cross section and wide long and roomy 0.1mm ~ 1mm, the second ruler section than the second ruler section outer surface cross section
The length of inner surface cross section and wide long and roomy 0.1mm ~ 1mm than third ruler section inner surface reduced when telescopic slide and are slided
Abrasion between set and ruler section, between ruler section and ruler section, increases the service life of measuring scale.
Connecting element is " T " shaped elastic material by block, when use by block directly through through-hole to fixed ruler section, Gu
It is simple to determine mode, ruler section can directly be shunk by pressing block when packing up, shrinks simple and convenient.
Description of the drawings
Fig. 1 is a kind of schematic diagram of construction graphometric square of the present invention.
Schematic diagram when Fig. 2 is a kind of storage of construction graphometric square of the present invention.
Fig. 3 is the structure chart of range counter.
Fig. 4 is range counter A-A sectional views.
Fig. 5 is the sectional view of connecting element.
In figure：1, support plate, 2, sliding sleeve, 3, fagging, 4, blade, the 401, first ruler section, the 402, second ruler section, 403, third ruler
Section, 5, ranging idler wheel, 6, form, 7, range counter, 701, carry gear, 702, count idler wheel, 703, carry shifting block, 704,
Carry gear shaft, 705, count roller shaft, 8, connecting element, 801, fixed plate, 802, spring, 803, press block.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments, base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
A kind of construction graphometric square, including support plate 1, sliding sleeve 2, fagging 3, blade 4, ranging idler wheel 5 and form 6, institute
It includes the first ruler section 401, the second ruler section 402 and third ruler section 403 to state blade 4, and the first ruler section 401 is linked in the second ruler section 402
Outside, the second ruler section 402 is linked in the outside of third ruler section 403, and the length of the first ruler section 401 is 1000mm, second
Ruler section 402, third ruler section 403 length be 1100mm, the use length of each ruler section is 1000mm, the first ruler section
The lower part of 401 each side is hinged with fagging 3, and the sliding sleeve 2 is linked on the first ruler section 401, fagging 3 and sliding sleeve 2 it
Between be provided with support plate 1, the both ends of support plate 1 are hinged with fagging 3 and sliding sleeve 2 respectively, and 403 front side top of third ruler section is equipped with length
Rectangular form 6, the position that 403 inner upper of third ruler section corresponds to form 6 are equipped with range counter 7, the distance meter
Number device 7 includes counting idler wheel 702, counting roller shaft 705, carry gear 701, carry gear shaft 704, the counting idler wheel 702
It is connected by counting roller shaft 705, the carry gear 701 is connected by carry gear shaft 704, the counting roller shaft
705 and carry gear shaft 704 be fixedly connected with the madial wall of third ruler section 403, count idler wheel 702 and carry gear 701 it
Between engaged transmission, the counting idler wheel 702 at least there are two, the counting idler wheel 702 of the rightmost side is fixedly connected with ranging idler wheel 5,
The carry gear 701 is each provided between two counting idler wheels 702.
Specific engaged transmission mode is between carry gear 701 and counting idler wheel 702：It is rolled with ranging on the right side of 5th idler wheel
Wheel 5 is fixedly connected, and when carrying out range measurement, the length that ranging idler wheel 5 rotates a circle is 1m, at this point, the 5th idler wheel also rotates
One week, because being provided only with a carry shifting block 703 on the left of the 5th idler wheel, at this point, the carry shifting block 703 on the left of the 5th idler wheel can band
Dynamic carry gear 701 between 5th idler wheel and the 4th idler wheel rotates a tooth, during carry gear 701 rotates, into
Deep trouth on the gear 701 of position can be meshed with the carry shifting block 703 on right side on the 4th gear, because the right side of the 4th idler wheel is equipped with ten
A carry shifting block 703, at this point, the 4th idler wheel rotates a tooth, the engaged transmission mode between remaining gear and idler wheel and the 5th rolling
Wheel is identical as the engaged transmission mode between the 4th idler wheel as carry gear 701, carry gear 701.
As a preferred embodiment, being equipped with grafting between adjacent ruler section, between sliding sleeve 2 and the first ruler section 401
Component 8, the connecting element 8 include fixed plate 801, spring 802, press block 803, and the side wall of the first ruler section 401 is equipped with
Groove, groove vertical plane are fixedly connected with fixed plate 801, and the fixed plate 801 presses block 803, the bullet by the connection of spring 802
Spring 802 runs through sliding sleeve 2；The side wall of the second ruler section 402 is equipped with groove, and groove vertical plane is fixedly connected with fixed plate 801,
The fixed plate 801 presses block 803 by the connection of spring 802, and the spring 802 runs through the first ruler section 401；The third ruler section
403 side wall is equipped with groove, and groove vertical plane is fixedly connected with fixed plate 801, and the fixed plate 801 is connected by spring 802
It connects by block 803, the spring 802 runs through the second ruler section 402；The block 803 of pressing is " T " shape elastic material.
As a preferred embodiment, the length of the support plate 1 be less than the first ruler section 401 and 3 hinged place of fagging away from
The length of height from 401 bottom of the first ruler section, the fagging 3 is 500mm, and the length of support plate 1 is 300mm, the first ruler section 401
Be 400mm with the height of 401 bottom of the first ruler of hinged place distance section of fagging 3, support plate 1 in use state with the first ruler section
Angle between 401 is 90 °, it is ensured that support plate 1 is stood with the independent support graphometric square of fagging 3, saves manpower.
As a preferred embodiment, the first ruler section 401, the second ruler section 402 and third ruler section 403 it is transversal
Face is rectangle, and observation registration is more intuitive.
As a preferred embodiment, the counting idler wheel 702 there are 5, it is from left to right followed successively by the first idler wheel,
Second wheel, third idler wheel, the 4th idler wheel, the 5th idler wheel are equipped with 0 ~ 90 numbers, the counting on the counting idler wheel 702
First idler wheel of idler wheel 702, the second idler wheel, third idler wheel, the 4th idler wheel right side set between each two number there are one
Carry shifting block 703, second idler wheel, third idler wheel, the 4th idler wheel, the 5th idler wheel left side are all provided with there are one carry shifting block 703,
The carry gear 701 has 4, is respectively provided between two counting idler wheels 702.
As a preferred embodiment, first idler wheel, the second idler wheel, third rolling road, the 4th idler wheel, the 5th rolling
On wheel number represent successively 7 registration of range counter kilobit, hundred, ten, a position, decimal, meet people read number
Custom.
As a preferred embodiment, the length of 2 inner surface cross section of the sliding sleeve and it is wide than the first ruler section 401 outside
The length of areal cross-section and roomy 0.1mm ~ 1mm, specially 0.5mm, the length and width of 401 inner surface cross section of the first ruler section compare
The length and roomy 0.1mm ~ 1mm, specially 0.5mm, 402 inner surface of the second ruler section of second ruler section, 402 outer surface cross section are transversal
The length in face and wide than long and roomy 0.1mm ~ 1mm, the specially 0.5mm of 403 outer surface of third ruler section, reduces ruler section flexible
When friction, increase the service life of graphometric square.
As a preferred embodiment, the vertical section of the ranging idler wheel 5 is circle, the length of circumference is 1m, side
Just it counts.
As a preferred embodiment, the carry gear 701 is cylinder, the outer wall of the carry gear 701
On be circumferentially provided with five deep trouths of annular array, the width of the groove is bigger than the width of carry shifting block 703, carry gear
It can normally be engaged between 701 and counting idler wheel 702.
As a kind of specific embodiment, fagging 3 is pulled, at this point, support plate 1 can open around with fagging 3, sliding sleeve 2
Can along 401 slide downward of the first ruler section, after slide downward certain distance, the spring 802 that is connect with the first ruler section 401 and with bullet
What spring 802 connected can run through sliding sleeve 2 by block 803, directly sliding sleeve 2 be fixed, support plate 1 is arranged in " ten " word, can be direct
It supports graphometric square to stand, is at this time plumbness, 3 oblique first ruler section 401 of fagging between the first ruler section 401 and support plate 1；It is surveying
During amount, blade 4 is used for measuring height, is equipped with altitude line on each ruler section, as the increase for measuring height can be to
The second ruler section 402 of upper pulling so that the spring 802 being connect with the second ruler section 402 with and spring connect by block 803 pass through first
Directly the second ruler section 402 is fixed for ruler section 401, and the altitude line of the first ruler section 401 and the second ruler section 402 just connects at this time
It connects, the height that each ruler section measures is 1m, with the increase of height, pulls ruler section upwards in turn；After elevation carrection, directly
It is the state most started to connect by block 803 is pressed by measuring scale storage, overturns measuring scale, ranging idler wheel 5 is bonded ground, pushes and surveys
Away from idler wheel 5, at this point, the rotation angle of ranging idler wheel 5 is consistent with the rotation angle of the 5th idler wheel, what ranging idler wheel 5 rotated a circle
Apart from exactly 1m, at this point, the 5th idler wheel also rotates a circle, because the 5th idler wheel left side is set, there are one carry shifting blocks 703, corresponding
The carry shifting block 703 of the 5th idler wheel upper left side be meshed with the groove on carry gear 701, carry gear 701 rotates one
Tooth, because being set between each two number on the right side of the 4th idler wheel there are one carry shifting block 703, at this time the groove of carry gear 701 with
The carry shifting block 703 on right side is meshed on 4th idler wheel, and the 4th idler wheel is driven to rotate a tooth, and range counter 7 can record
Lower displacement distance, it is only necessary to record mobile front and back counter registration and can be obtained displacement distance.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent character or Structural Transformation made by bright specification and accompanying drawing content are applied directly or indirectly in other relevant technology necks
Domain is similarly included in the scope of patent protection of the present invention.
Claims (9)
1. a kind of construction graphometric square, including support plate（1）, sliding sleeve（2）, fagging（3）, blade（4）, ranging idler wheel（5）With
Form（6）, it is characterised in that：The blade（4）Including the first ruler section（401）, the second ruler section（402）With third ruler section（403）,
First ruler section（401）It is linked in the second ruler section（402）Outside, the second ruler section（402）It is linked in third ruler section（403）It is outer
Portion, the first ruler section（401）The lower part of each side be hinged with fagging（3）, the sliding sleeve（2）It is linked in the first ruler section
（401）On, fagging（3）And sliding sleeve（2）Between be provided with support plate（1）, support plate（1）Both ends respectively with fagging（3）And sliding sleeve（2）
It is hinged, the third ruler section（403）Front side top is equipped with rectangular form（6）, the third ruler section（403）Inner upper pair
Answer form（6）Position be equipped with range counter（7）, the range counter（7）Including counting idler wheel（702）, count idler wheel
Axis（705）, carry gear（701）, carry gear shaft（704）, the counting idler wheel（702）By counting roller shaft（705）
Connection, the carry gear（701）Pass through carry gear shaft（704）Connection, the counting roller shaft（705）With carry gear
Axis（704）With third ruler section（403）Madial wall be fixedly connected, count idler wheel（702）With carry gear（701）Between engage
Transmission, the counting idler wheel（702）There are two at least, the counting idler wheel of the rightmost side（702）With ranging idler wheel（5）It is fixedly connected,
The carry gear（701）It is each provided at two counting idler wheels（702）Between.
2. a kind of construction graphometric square according to claim 1, it is characterised in that：Between adjacent ruler section, sliding sleeve（2）
With the first ruler section（401）Between be equipped with connecting element（8）, the connecting element（8）Including fixed plate（801）, spring（802）
With by block（803）, the first ruler section（401）, the second ruler section（402）With third ruler section（403）Side wall on be all provided with it is fluted,
Groove vertical plane is fixedly connected with fixed plate（801）, the fixed plate（801）Pass through spring（802）Block is pressed in connection（803）, institute
State spring（802）Extend through sliding sleeve（2）, the first ruler section（401）With the second ruler section（402）, described to press block（803）To be in " T "
The elastic material of shape.
3. a kind of construction graphometric square according to claim 1, it is characterised in that：The support plate（1）Length it is small
In the first ruler section（401）With fagging（3）Hinged place distance the first ruler section（401）The height of bottom, support plate（1）In use state
With the first ruler section（401）Between angle be 90 °.
4. a kind of construction graphometric square according to claim 1, it is characterised in that：The first ruler section（401）,
Two ruler sections（402）With third ruler section（403）Cross section be rectangle.
5. a kind of construction graphometric square according to claim 1, it is characterised in that：The counting idler wheel（702）Have 5
It is a, from left to right it is followed successively by the first idler wheel, the second idler wheel, third idler wheel, the 4th idler wheel, the 5th idler wheel, the counting idler wheel
（702）On be equipped with 0 ~ 90 numbers, the counting idler wheel（702）The first idler wheel, the second idler wheel, third idler wheel, the 4th rolling
The right side of wheel is set between each two number there are one carry shifting block（703）, second idler wheel, third idler wheel, the 4th rolling
Carry shifting block there are one being all provided on the left of wheel, the 5th idler wheel（703）, the carry gear（701）There are 4, is respectively provided at two meters
Number idler wheel（702）Between.
6. a kind of construction graphometric square according to claim 5, it is characterised in that：First idler wheel, the second rolling
It takes turns, third rolls road, the number on the 4th idler wheel, the 5th idler wheel represents range counter successively（7）The kilobit of registration, hundred, ten
Position, a position, decimal.
7. a kind of construction graphometric square according to claim 1, it is characterised in that：The sliding sleeve（2）Inner surface is horizontal
The length in section and wide than the first ruler section（401）The length of outer surface cross section and roomy 0.1mm ~ 1mm, the first ruler section（401）It is interior
The length of areal cross-section and wide than the second ruler section（402）The length of outer surface cross section and roomy 0.1mm ~ 1mm, the second ruler section
（402）The length and width of inner surface cross section are than third ruler section（403）The length of outer surface and roomy 0.1mm ~ 1mm.
8. a kind of construction graphometric square according to claim 1, it is characterised in that：The ranging idler wheel（5）It is perpendicular
Section is circle, and the length of circumference is 1m.
9. a kind of construction graphometric square according to claim 1, it is characterised in that：The carry gear（701）For
Cylinder, the carry gear（701）Outer wall on be circumferentially provided with five deep trouths of annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888106.8A CN108801232B (en) | 2018-08-07 | 2018-08-07 | Surveying and mapping ruler for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888106.8A CN108801232B (en) | 2018-08-07 | 2018-08-07 | Surveying and mapping ruler for building construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108801232A true CN108801232A (en) | 2018-11-13 |
| CN108801232B CN108801232B (en) | 2023-09-29 |
Family
ID=64079480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810888106.8A Active CN108801232B (en) | 2018-08-07 | 2018-08-07 | Surveying and mapping ruler for building construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108801232B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282793A (en) * | 2018-12-05 | 2019-01-29 | 姬晨博 | A kind of roadbed slope gradient measuring apparatus |
Citations (3)
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|---|---|---|---|---|
| DE2030061A1 (en) * | 1969-06-18 | 1971-04-01 | Tsugami T | Digital micrometer |
| CN2166013Y (en) * | 1993-11-06 | 1994-05-25 | 曹德明 | Large-radius arc plotting instrument |
| CN208432265U (en) * | 2018-08-07 | 2019-01-25 | 河南科技大学 | A kind of construction graphometric square |
-
2018
- 2018-08-07 CN CN201810888106.8A patent/CN108801232B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2030061A1 (en) * | 1969-06-18 | 1971-04-01 | Tsugami T | Digital micrometer |
| CN2166013Y (en) * | 1993-11-06 | 1994-05-25 | 曹德明 | Large-radius arc plotting instrument |
| CN208432265U (en) * | 2018-08-07 | 2019-01-25 | 河南科技大学 | A kind of construction graphometric square |
Non-Patent Citations (1)
| Title |
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| 王光胜;: "关于建筑工程测量技术的问题探讨", 四川建材, no. 02 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282793A (en) * | 2018-12-05 | 2019-01-29 | 姬晨博 | A kind of roadbed slope gradient measuring apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108801232B (en) | 2023-09-29 |
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