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| 水利工程 | |||
| 水利工程水资源工程; 水资源项目水利项目 | |||
| 水利资源工程 | |||
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| 水资源项目水利项目 | |||
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| 水利工程 | |||
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water resources project : 3 phrases in 2 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 2 |
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