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41. | tugging at the oars. |
| 牵引船桨 |
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42. | direction of tractio |
| 牵引方向 |
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43. | pulling phenomenon |
| 牵引现象 |
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44. | axis of traction |
| 牵引轴 |
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45. | power at the drawbar |
| 牵引功率 |
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46. | funicular traction |
| 缆索牵引 |
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47. | traction substation |
| 牵引变电所 |
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48. | caterpillar traction |
| 履带牵引 |
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49. | adhesion traction |
| 粘附牵引 |
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50. | backward haulage |
| 逆向牵引 |
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