| |||
untreated water | |||
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untreated water |
未 处 理的水 : 31 phrases in 11 subjects |
Animal husbandry | 1 |
Earth sciences | 1 |
Ecology | 3 |
Environment | 2 |
General | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 3 |
Nautical | 1 |
Oil / petroleum | 1 |
Technology | 13 |
Water resources | 4 |