平均水位: 94 phrases in 13 subjects |
Architecture | 1 |
Bridge construction | 8 |
Desert science | 1 |
Earth sciences | 2 |
Electronics | 1 |
Engineering geology | 2 |
General | 4 |
Geology | 7 |
Hydroelectric power stations | 6 |
Hydrology | 3 |
Navigation | 3 |
Project management | 1 |
Technology | 55 |