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| 中央传动 | |||
| 主传动机构 | |||
| 主传动 | |||
| 主传动机构; 主平巷; 主传动装置; 主传动设备 | |||
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| 轧机主传动 | |||
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main drive : 42 phrases in 10 subjects |
| Agriculture | 3 |
| Air defense | 2 |
| Architecture | 1 |
| Automobiles | 6 |
| Electric machinery | 1 |
| Metallurgy | 6 |
| Oil / petroleum | 1 |
| Space | 3 |
| Steel production | 1 |
| Technology | 18 |
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