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| 引渠 | |||
| 引航道，进水渠; 进水渠; 引水渠; 引航道 | |||
| 气体的引入通道; 引槽; 进口航道; 进港口航道; 进出港航道 | |||
| 进港航道 | |||
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approach channel : 16 phrases in 4 subjects |
| Hydroelectric power stations | 5 |
| Metallurgy | 2 |
| Technology | 8 |
| United Nations | 1 |
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