CN111161568A - English listening comprehension trainer - Google Patents

English listening comprehension trainer Download PDF

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Publication number
CN111161568A
CN111161568A CN202010145956.6A CN202010145956A CN111161568A CN 111161568 A CN111161568 A CN 111161568A CN 202010145956 A CN202010145956 A CN 202010145956A CN 111161568 A CN111161568 A CN 111161568A
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CN
China
Prior art keywords
dust
english
round
proof box
fixedly connected
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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.)
Withdrawn
Application number
CN202010145956.6A
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Chinese (zh)
Inventor
吴晓丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shangluo University
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Shangluo University
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Filing date
Publication date
Application filed by Shangluo University filed Critical Shangluo University
Priority to CN202010145956.6A priority Critical patent/CN111161568A/en
Publication of CN111161568A publication Critical patent/CN111161568A/en
Withdrawn legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00Electrically-operated educational appliances
    • G09B5/04Electrically-operated educational appliances with audible presentation of the material to be studied
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32Undercarriages for supports with three or more telescoping legs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

The invention belongs to the technical field of teaching equipment, and particularly relates to an English listening training device which aims at the problems that an existing English listening teaching structure is single, students in different directions are easy to hear unclear or misjudge due to the fact that one loudspeaker is mainly used for pronouncing in one direction, and the existing English listening teaching device comprises a dust-proof box, wherein a supporting plate is arranged in the dust-proof box in a sliding mode, an English player is fixedly connected to the top of the supporting plate, a U disk, two first loudspeakers and a second loudspeaker are connected to the English player, the two first loudspeakers are rotatably connected to the top of an English broadcasting loudspeaker, a rectangular hole is formed in the top of the dust-proof box, and a dust-proof plate is arranged in the rectangular hole in a sliding mode. The portable sound box is simple in structure and convenient to move, can use a plurality of loudspeakers, adjusts the angles of the loudspeakers, can play sound in different directions, and is convenient to store and protect the loudspeakers and an English player.

Description

English listening comprehension trainer
Technical Field
The invention relates to the technical field of teaching equipment, in particular to an English listening comprehension training device.
Background
English is international universal language, also is the second language of china, because the influence of living environment, learns English to the people of most non-english native languages and is the difficult thing, learns English at school, in order to improve the study progress, cooperates hearing teaching and written teaching to learn simultaneously usually.
The existing English listening teaching structure is single, and a loudspeaker is mainly used for pronouncing in one direction, so that students in different directions can not hear clearly or misjudge easily.
Disclosure of Invention
The invention aims to solve the defects that the existing English listening teaching device has a single structure, pronounces in one direction by mainly using a loudspeaker, and easily causes students in different directions to be unclear or misjudge.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an english listening comprehension trainer, including the dust proof box, the inside slidable mounting of dust proof box has the backup pad, the top fixedly connected with english player of backup pad, be connected with the USB flash disk on the english player, two first megaphone and second megaphone, two first megaphone all rotate with the top of english broadcasting ware and be connected, the rectangular hole has been seted up at the top of dust proof box, slidable mounting has the dust guard in the rectangular hole, equal same welded plate of fixedly connected with on the both sides inner wall of dust proof box, it has the motor to embed on the welded plate, fixedly connected with screw rod on the output shaft of motor, backup pad and screw rod threaded connection, the top of screw rod is connected with power transmission mechanism, power transmission mechanism and dust guard looks adaptation, longitudinal sliding installs four landing legs on the welded plate, the bottom of four landing legs all is provided with the truckle, four landing.
Preferably, the same connecting plate of equal fixedly connected with on four landing legs, fixed mounting has a plurality of reset spring between the bottom of connecting plate and the bottom inner wall of dust proof box, and reset spring provides ascending elasticity for four landing legs through the connecting plate.
Preferably, the holding tank has been seted up on one side inner wall in rectangular hole, dust guard and holding tank sliding connection, the equal fixedly connected with rotation axis in bottom of two first megaphones, two rotation axes all rotate with the english player and are connected.
Preferably, power transmission device includes circle piece, circle axle, gear and rack, the top fixed connection of circle piece and screw rod, circle axle and circle piece looks adaptation, and the gear groove has been seted up at the top of dust guard, and rack fixed mounting is on one side inner wall of gear groove, the top fixed connection of gear and circle axle, gear and rack meshing, circle axle pass through the gear and drive the rack removal, and the rack can drive the dust guard removal.
Preferably, the rotation groove has been seted up at the top of circle piece, the circle axle rotates with the rotation groove to be connected, two circular slots have been seted up to the symmetry on the inner wall in rotation groove, equal slidable mounting has the round bar in two circular slots, fixed mounting has same spring between round bar and the circular slot that corresponds, a plurality of arc walls have evenly been seted up in the outside of circle axle, round bar and arc groove looks adaptation, provide elasticity for the round bar through the spring, make the round bar get into in the arc wall, because round bar and arc wall contact position are the arc structure, when the circular axis atress is too big, the round bar can break away from the arc wall to one and get into another arc wall.
Preferably, equal fixed mounting has two guide rails on the both sides inner wall of dust-proof box, and slidable mounting has the guide block on the guide rail, and four guide blocks all lead with backup pad fixed connection, guide rail and guide block to the backup pad.
Preferably, four through holes are formed in the inner wall of the bottom of the dust-proof box, and the four trundles are movably connected with the four through holes respectively.
Preferably, the dust-proof box is movably connected with a storage drawer, one side of the dust-proof box is rotatably connected with a box cover, a storage battery is arranged in the dust-proof box, and the box cover can be conveniently opened to overhaul the inside of the dust-proof box.
Compared with the prior art, the invention has the advantages that:
(1) this scheme motor drives the screw rod and passes through the backup pad and promote the english player, and the english player promotes two first megaphone and second megaphone and leaves the dust proof box, and convenient to use can conveniently propagate the sound to different position through the angle of adjusting two first megaphones.
(2) This scheme screw rod passes through the disk and drives the circle axle and rotate, and the circle axle drives the rack through the gear and removes, and the rack can drive the dust guard and remove, and the dust guard leaves in the rectangular hole gets into the holding tank.
(3) This scheme motor drives backup pad downstream, and the backup pad drives english player downstream and gets into inside the dust proof box, and the dust guard gets into the downthehole dust proof box that seals of rectangle simultaneously.
(4) This scheme need when the dust-proof box removes, continue the drive backup pad downstream, the backup pad promotes four landing legs downstream, four landing legs promote four truckles downstream respectively all with the ground contact and play the supporting role, the dust guard is contradicted with one side inner wall of rectangular hole simultaneously, because round bar and arc wall contact position are the arc structure, when the round axle atress was too big, the round bar can break away from the arc wall to one and get into another arc wall, can not hinder the normal drive of motor.
The portable sound box is simple in structure and convenient to move, can use a plurality of loudspeakers, adjusts the angles of the loudspeakers, can play sound in different directions, and is convenient to store and protect the loudspeakers and an English player.
Drawings
Fig. 1 is a schematic structural diagram of an english listening comprehension training device according to the present invention;
fig. 2 is a schematic perspective view of an english listening comprehension training device according to the present invention;
FIG. 3 is a schematic diagram of part A of an English listening training device according to the present invention;
fig. 4 is a schematic perspective view of a dust guard and a rack of the english listening comprehension training device according to the present invention;
fig. 5 is a schematic side view of an english player, a usb disk, a first microphone, a second microphone, and a rotation shaft of the english listening training device according to the present invention.
In the figure: 1 dustproof box, 2 guide rails, 3 guide blocks, 4 backup pads, 5 english players, 6U dishes, 7 first megaphone, 8 rotation axes, 9 second megaphone, 10 welded plates, 11 motors, 12 screws, 13 landing legs, 14 connecting plates, 15 reset springs, 16 through holes, 17 truckles, 18 storage drawers, 19 holding grooves, 20 rectangular holes, 21 dustproof plates, 22 circular shafts, 23 circular blocks, 24 circular grooves, 25 springs, 26 circular rods, 27 arc grooves, 28 gear grooves, 29 racks, 30 chamber doors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-5, an english listening comprehension training device comprises a dust-proof box 1, a support plate 4 is slidably mounted inside the dust-proof box 1, an english player 5 is fixedly connected to the top of the support plate 4, a usb disk 6, two first microphones 7 and a second microphone 9 are connected to the english player 5, the two first microphones 7 are rotatably connected to the top of the english player 5, a rectangular hole 20 is formed in the top of the dust-proof box 1, a dust guard 21 is slidably mounted in the rectangular hole 20, the same welding plate 10 is fixedly connected to the inner walls of the two sides of the dust-proof box 1, a motor 11 is embedded in the welding plate 10, a screw 12 is fixedly connected to the output shaft of the motor 11, the support plate 4 is in threaded connection with the screw 12, a force transmission mechanism is connected to the top of the screw 12, the force transmission mechanism is matched with the dust guard 21, four support legs 13 are longitudinally slidably mounted, the bottom of four landing legs 13 all is provided with truckle 17, and four landing legs 13 all are with backup pad 4 looks adaptation.
In this embodiment, the same connecting plate 14 of equal fixedly connected with on four landing legs 13, fixed mounting has a plurality of reset spring 15 between the bottom of connecting plate 14 and the bottom inner wall of dust-proof box 1, and reset spring 15 provides ascending elasticity for four landing legs 13 through connecting plate 14, and when backup pad 4 left four landing legs 13, reset spring 15 drove four landing legs 13 upward movements through connecting plate 14, and four landing legs 13 drove four truckles 17 respectively and upwards moved and left ground.
In this embodiment, seted up holding tank 19 on one side inner wall of rectangular hole 20, dust guard 21 and 19 sliding connection of holding tank, the equal fixedly connected with rotation axis 8 in bottom of two first megaphone 7, two rotation axes 8 all rotate with english player 5 and are connected.
In this embodiment, power transmission device includes circle piece 23, circle axle 22, gear and rack 29, circle piece 23 and the top fixed connection of screw rod 12, circle axle 22 and the looks adaptation of circle piece 23, gear groove 28 has been seted up at the top of dust guard 21, rack 29 fixed mounting is on one side inner wall of gear groove 28, the top fixed connection of gear and circle axle 22, the gear and the meshing of rack 29, circle axle 22 drives rack 29 through the gear and removes, rack 29 can drive dust guard 21 and remove.
In this embodiment, the rotation groove has been seted up at the top of circle piece 23, circle axle 22 rotates with the rotation groove to be connected, two circular slots 24 have been seted up to the symmetry on the inner wall in rotation groove, equal slidable mounting has round bar 26 in two circular slots 24, fixed mounting has same spring 25 between round bar 26 and the circular slot 24 that corresponds, a plurality of arc walls 27 have evenly been seted up in the outside of circle axle 22, round bar 26 and 27 looks adaptations of arc wall, provide elasticity for round bar 26 through spring 25, make round bar 26 get into in the arc wall 27, because round bar 26 and 27 contact position of arc wall are the arc structure, when the atress of circle axle 22 is too big, round bar 26 can break away from arc wall 27 to one and enter into another arc wall 27.
In this embodiment, equal fixed mounting has two guide rails 2 on the both sides inner wall of dust proof box 1, and slidable mounting has guide block 3 on guide rail 2, four guide blocks 3 all with backup pad 4 fixed connection, guide rail 2 leads backup pad 4 with guide block 3.
In this embodiment, four through holes 16 are formed in the inner wall of the bottom of the dust-proof box 1, and four casters 17 are respectively movably connected with the four through holes 16.
In this embodiment, swing joint has storage drawer 18 on dust proof box 1, and one side of dust proof box 1 rotates and is connected with case lid 30, and the inside of dust proof box 1 is provided with the battery, and case lid 30 can conveniently open dust proof box 1 and overhaul dust proof box 1 inside.
Example two
Referring to fig. 1-5, an english listening comprehension training device comprises a dust-proof box 1, a support plate 4 is slidably mounted inside the dust-proof box 1, the top of the support plate 4 is fixedly connected with an english player 5 through screws, the english player 5 is connected with a usb disk 6, two first microphones 7 and a second microphone 9, the two first microphones 7 are both rotatably connected with the top of the english player 5, the top of the dust-proof box 1 is provided with a rectangular hole 20, a dust guard 21 is slidably mounted in the rectangular hole 20, the inner walls of two sides of the dust-proof box 1 are both fixedly connected with a same welding plate 10 through screws, a motor 11 is embedded in the welding plate 10, an output shaft of the motor 11 is fixedly connected with a screw 12 through screws, the support plate 4 is in threaded connection with the screw 12, the top of the screw 12 is connected with a force transmission mechanism, the force transmission mechanism is matched with the dust guard 21, four support legs 13 are longitudinally slidably, the bottom of four landing legs 13 all is provided with truckle 17, and four landing legs 13 all are with backup pad 4 looks adaptation.
In this embodiment, all through the same connecting plate 14 of screw fixedly connected with on four landing legs 13, install a plurality of reset spring 15 through welded fastening between the bottom of connecting plate 14 and the bottom inner wall of dust proof box 1, reset spring 15 provides ascending elasticity for four landing legs 13 through connecting plate 14, when backup pad 4 leaves four landing legs 13, reset spring 15 drives four landing legs 13 upward movement through connecting plate 14, and four landing legs 13 drive four truckles 17 upward movement respectively and leave ground.
In this embodiment, seted up holding tank 19 on one side inner wall of rectangular hole 20, dust guard 21 and 19 sliding connection of holding tank, the bottom of two first megaphone 7 all is connected with rotation axis 8 through screw fixed connection, and two rotation axes 8 all rotate with english player 5 and are connected.
In this embodiment, power transmission device includes circle piece 23, circle axle 22, gear and rack 29, and screw fixed connection is passed through on the top of circle piece 23 and screw rod 12, circle axle 22 and the looks adaptation of circle piece 23, and gear groove 28 has been seted up at the top of dust guard 21, and rack 29 passes through welded fastening and installs on one side inner wall of gear groove 28, and screw fixed connection is passed through on the top of gear and circle axle 22, and the gear meshes with rack 29, and circle axle 22 passes through the gear and drives rack 29 and remove, and rack 29 can drive dust guard 21 and remove.
In this embodiment, the rotation groove has been seted up at the top of circle piece 23, circle axle 22 rotates with the rotation groove to be connected, two circular slots 24 have been seted up to the symmetry on the inner wall in rotation groove, equal slidable mounting has round bar 26 in two circular slots 24, there is same spring 25 through welded fastening between round bar 26 and the circular slot 24 that corresponds, a plurality of arc walls 27 have evenly been seted up in the outside of circle axle 22, round bar 26 and 27 looks adaptations of arc wall, provide elasticity for round bar 26 through spring 25, make round bar 26 get into in the arc wall 27, because round bar 26 and 27 contact position of arc wall are the arc structure, when the atress of circle axle 22 was too big, round bar 26 can break away from the arc wall 27 to one and enter into another arc wall 27.
In this embodiment, all there are two guide rails 2 through welded fastening on the both sides inner wall of dust proof box 1, and slidable mounting has guide block 3 on guide rail 2, and four guide blocks 3 all pass through screw fixed connection with backup pad 4, and guide rail 2 leads backup pad 4 with guide block 3.
In this embodiment, four through holes 16 are formed in the inner wall of the bottom of the dust-proof box 1, and four casters 17 are respectively movably connected with the four through holes 16.
In this embodiment, swing joint has storage drawer 18 on dust proof box 1, and one side of dust proof box 1 rotates and is connected with case lid 30, and the inside of dust proof box 1 is provided with the battery, and case lid 30 can conveniently open dust proof box 1 and overhaul dust proof box 1 inside.
In the embodiment, when the English information transmission device is used, English information is transmitted to an English player 5 through a USB flash disk 6, a motor 11 is started, the motor 11 drives a screw 12 to rotate, the screw 12 drives a support plate 4 to move upwards, the support plate 4 pushes the English player 5, the screw 12 drives a round shaft 22 to rotate through a round block 23, the round shaft 22 drives a rack 29 to move through a gear, the rack 29 can drive a dustproof plate 21 to move, the dustproof plate 21 leaves a rectangular hole 20 and enters an accommodating groove 19, the English player 5 pushes two first loudspeakers 7 and a second loudspeaker 9 to leave a dustproof box 1, the use is convenient, sound can be conveniently transmitted to different directions by adjusting the angles of the two first loudspeakers 7, after the use is completed, the motor 11 is reversely started, the motor 11 drives the support plate 5 to move downwards, the support plate 4 drives the English player 5 to move downwards and enter the dustproof box 1, and the dustproof plate 21 enters the rectangular hole 20 to seal the dustproof box 1, when needing to remove dust-proof box 1, continue to drive backup pad 5 downstream, backup pad 5 promotes four landing legs 13 downstream, four landing legs 13 promote four truckles 17 downstream respectively and all contact with ground and play the supporting role, simultaneously dust guard 21 contradicts with one side inner wall of rectangular hole 20, because round bar 26 is the arc structure with arc 27 contact position, when round axle 22 atress is too big, round bar 26 can break away from arc 27 to one and enter into another arc 27, can not hinder motor 11's normal drive.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. An English listening training device comprises a dustproof box (1), a supporting plate (4) is slidably mounted in the dustproof box (1), and an English player (5) is fixedly connected to the top of the supporting plate (4), and is characterized in that a U disk (6), two first loudspeakers (7) and a second loudspeaker (9) are connected to the English player (5), the two first loudspeakers (7) are rotatably connected to the top of the English player (5), a rectangular hole (20) is formed in the top of the dustproof box (1), a dustproof plate (21) is slidably mounted in the rectangular hole (20), the inner walls of two sides of the dustproof box (1) are fixedly connected to the same welding plate (10), a motor (11) is embedded in the welding plate (10), a screw (12) is fixedly connected to an output shaft of the motor (11), and the supporting plate (4) is in threaded connection with the screw (12), the top of screw rod (12) is connected with power transmission device, and power transmission device and dust guard (21) looks adaptation, and vertical slidable mounting has four landing legs (13) on welded plate (10), and the bottom of four landing legs (13) all is provided with truckle (17), and four landing legs (13) all with backup pad (4) looks adaptation.
2. English listening training device of claim 1, characterized in that the same connecting plate (14) is fixedly connected to each of the four legs (13), and a plurality of return springs (15) are fixedly mounted between the bottom of the connecting plate (14) and the inner wall of the bottom of the dust-proof box (1).
3. The English listening training device of claim 1, wherein a receiving groove (19) is formed in one side of the inner wall of the rectangular hole (20), the dust guard (21) is slidably connected with the receiving groove (19), the rotating shafts (8) are fixedly connected to the bottoms of the two first loudspeakers (7), and the two rotating shafts (8) are rotatably connected with the English player (5).
4. The English listening training device of claim 1, wherein the force transmission mechanism comprises a round block (23), a round shaft (22), a gear and a rack (29), the round block (23) is fixedly connected with the top end of the screw (12), the round shaft (22) is matched with the round block (23), a gear groove (28) is formed in the top of the dustproof plate (21), the rack (29) is fixedly installed on the inner wall of one side of the gear groove (28), the gear is fixedly connected with the top end of the round shaft (22), and the gear is meshed with the rack (29).
5. The English listening training device of claim 4, wherein a rotating groove is formed in the top of the round block (23), the round shaft (22) is rotatably connected with the rotating groove, two round grooves (24) are symmetrically formed in the inner wall of the rotating groove, round rods (26) are slidably mounted in the two round grooves (24), the same spring (25) is fixedly mounted between each round rod (26) and the corresponding round groove (24), a plurality of arc-shaped grooves (27) are uniformly formed in the outer side of the round shaft (22), and the round rods (26) are matched with the arc-shaped grooves (27).
6. The English listening training device of claim 1, wherein two guide rails (2) are fixedly mounted on the inner walls of two sides of the dust-proof box (1), guide blocks (3) are slidably mounted on the guide rails (2), and the four guide blocks (3) are fixedly connected with the supporting plate (4).
7. The English listening training device of claim 1, wherein four through holes (16) are formed in the inner wall of the bottom of the dust-proof box (1), and four casters (17) are movably connected with the four through holes (16) respectively.
8. The English listening training device of claim 1, wherein a storage drawer (18) is movably connected to the dust-proof box (1), a box cover (30) is rotatably connected to one side of the dust-proof box (1), and a storage battery is arranged inside the dust-proof box (1).
CN202010145956.6A 2020-03-05 2020-03-05 English listening comprehension trainer Withdrawn CN111161568A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010145956.6A CN111161568A (en) 2020-03-05 2020-03-05 English listening comprehension trainer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010145956.6A CN111161568A (en) 2020-03-05 2020-03-05 English listening comprehension trainer

Publications (1)

Publication Number Publication Date
CN111161568A true CN111161568A (en) 2020-05-15

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ID=70567027

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010145956.6A Withdrawn CN111161568A (en) 2020-03-05 2020-03-05 English listening comprehension trainer

Country Status (1)

Country Link
CN (1) CN111161568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111932971A (en) * 2020-08-19 2020-11-13 山东交通职业学院 Simulation training device for ship power station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111932971A (en) * 2020-08-19 2020-11-13 山东交通职业学院 Simulation training device for ship power station
CN111932971B (en) * 2020-08-19 2022-03-08 山东交通职业学院 Simulation training device for ship power station

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Application publication date: 20200515