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| 下游河段 | |||
| 河流下游段; 下游河段河流下游段 | |||
| 下游 | |||
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lower river : 16 phrases in 7 subjects |
| Agriculture | 1 |
| Bridge construction | 1 |
| Desert science | 2 |
| General | 1 |
| Hydroelectric power stations | 6 |
| Oil / petroleum | 1 |
| Technology | 4 |
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