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51. | tractive performance |
| 牵引性能 |
|
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52. | drag disk harrow |
| 牵引圆盘耙 |
|
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53. | pneumatic traction |
| 气力牵引 |
|
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54. | alternating current tractio |
| 交流牵引 |
|
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55. | protractor muscle |
| 牵引肌 |
|
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56. | traction transport |
| 牵引搬运 |
|
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57. | traction orthodontic treatment |
| 牵引矫治 |
|
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58. | battery traction |
| 蓄电池牵引 |
|
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59. | traction splint |
| 牵引夹板 |
|
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60. | railless traction |
| 无轨牵引 |
|
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