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| 51. | swivelling countershaft |
| 回转副轴 |
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| 52. | slueing generator |
| 回转发电机 |
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| | |
| 53. | slewing drilling machine |
| 回转钻机 |
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| | |
| 54. | rotating vibration generator |
| 回转振动器 |
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| | |
| 55. | slewing handwheel |
| 回转手轮 |
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| 56. | swiveling lever |
| 回转杆 |
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| 57. | rotary throttle valve |
| 回转节流阀 |
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| 58. | anticlockwise revolution |
| 逆时针回转 |
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| 59. | tactical diameter |
| 回转直径 |
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| 60. | rotary main shaft |
| 回转主轴 |
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