死水 : 58 phrases in 15 subjects |
Agriculture | 2 |
Bridge construction | 2 |
Desert science | 3 |
Drilling | 1 |
Earth sciences | 2 |
Ecology | 2 |
Electronics | 2 |
Engineering geology | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Forestry | 4 |
General | 4 |
Hydroelectric power stations | 10 |
Metallurgy | 1 |
Technology | 21 |
Wind Energy | 2 |