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| 插头与插座 | |||
| 套管和承窝 (pipe) | |||
| 套筒式连接 | |||
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spigot and socket : 65 phrases in 12 subjects |
| Ecology | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 2 |
| Hydroelectric power stations | 5 |
| Mechanic engineering | 1 |
| Metallurgy | 3 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Plastics | 1 |
| Technology | 46 |
| Water resources | 1 |
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