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传动 链 链轮 : 41 phrases in 11 subjects |
| Automobiles | 11 |
| Construction | 1 |
| Drilling | 3 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Nautical | 2 |
| Oil / petroleum | 2 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 17 |
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