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| |||
| traction efficiency | |||
| propulsive coefficient | |||
| haulage efficiency; tractive efficiency | |||
|
牵引效率 : 6 phrases in 5 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Electric machinery | 1 |
| Metallurgy | 1 |
| Technology | 1 |
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