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| 汇水区 | |||
| 集水区; 集水面积; 集流区 | |||
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collection area : 13 phrases in 9 subjects |
| Aviation | 1 |
| Bridge construction | 1 |
| Cartography | 1 |
| China | 1 |
| Librarianship | 1 |
| Space | 2 |
| Technology | 4 |
| Textile industry | 1 |
| United Nations | 1 |
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