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runoff and sediment yield; sediment production |
产沙 : 47 phrases in 11 subjects |
Agriculture | 1 |
Biology | 1 |
Desert science | 1 |
Earth sciences | 2 |
Ecology | 22 |
Fish farming pisciculture | 1 |
Hydroelectric power stations | 2 |
Hydrology | 4 |
Name of organization | 1 |
Reproductive biology | 1 |
Technology | 11 |