| |||
water-supply and sewerage works | |||
water supply and sewerage works | |||
water supply and sewage facilities |
给水 排水 工程 : 16 phrases in 7 subjects |
Agriculture | 1 |
Ecology | 1 |
Engineering geology | 1 |
Hydroelectric power stations | 1 |
Project management | 1 |
Rail transport | 1 |
Technology | 10 |