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31. | backward haulage |
| 逆向牵引 |
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32. | traction substation |
| 牵引变电所 |
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33. | adhesion traction |
| 粘附牵引 |
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34. | animal traction; animal hauling |
| 畜力牵引 |
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35. | funicular traction |
| 缆索牵引 |
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36. | axis of traction |
| 牵引轴 |
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37. | tugging at the oars. |
| 牵引船桨 |
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38. | restraining effect |
| 牵引效应 |
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39. | caterpillar traction |
| 履带牵引 |
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40. | towed artillery |
| 牵引炮 |
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