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lowering of water table; top contract | |||
down surge; drawdown; lowering of water-level; negative wave; water-table decline |
水面下降: 24 phrases in 7 subjects |
Bridge construction | 1 |
Ecology | 2 |
Electronics | 2 |
Engineering geology | 2 |
General | 1 |
Hydroelectric power stations | 2 |
Technology | 14 |