水 循环系统 : 88 phrases in 18 subjects |
Agriculture | 1 |
Architecture | 1 |
Automobiles | 2 |
Aviation | 7 |
Earth sciences | 2 |
Ecology | 2 |
Electronics | 3 |
Engineering geology | 3 |
Hydroelectric power stations | 1 |
Metallurgy | 1 |
Nautical | 2 |
Nuclear and fusion power | 8 |
Oil / petroleum | 4 |
Plastics | 1 |
Refrigeration | 4 |
Space | 1 |
Technology | 40 |
Water resources | 5 |