排水 沟: 498 phrases in 22 subjects |
Agriculture | 35 |
Animal husbandry | 3 |
Architecture | 16 |
Automobiles | 1 |
Bridge construction | 23 |
Construction | 3 |
Desert science | 5 |
Drilling | 1 |
Ecology | 7 |
Electronics | 5 |
Engineering geology | 23 |
General | 9 |
Hydraulics | 6 |
Hydroelectric power stations | 53 |
Hydrology | 4 |
Metallurgy | 4 |
Oil / petroleum | 2 |
Plastics | 3 |
Rail transport | 4 |
Technology | 282 |
Textile industry | 1 |
Water resources | 8 |