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| 河床高程; 河底高程 | |||
| 基床高程 | |||
| bed level: 18 phrases in 6 subjects |
| Agriculture | 1 |
| Bridge construction | 3 |
| Ecology | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Technology | 10 |
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