![]() |
排污标准 : 51 phrases in 14 subjects |
Automobiles | 2 |
Aviation | 1 |
China | 2 |
Drilling | 1 |
Earth sciences | 3 |
Ecology | 6 |
Electronics | 1 |
Environment | 3 |
Hydroelectric power stations | 3 |
Life sciences | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Technology | 21 |
Water resources | 5 |