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| 滑车; 滑轮 | |||
| block sheave: 29 phrases in 7 subjects |
| Bridge construction | 1 |
| Drilling | 2 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Shipbuilding | 5 |
| Technology | 17 |
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