常 水 位 : 93 phrases in 12 subjects |
1 | |
Architecture | 1 |
Bridge construction | 8 |
Desert science | 3 |
Earth sciences | 2 |
Electric machinery | 1 |
Engineering geology | 2 |
Hydroelectric power stations | 17 |
Metallurgy | 1 |
Navigation | 2 |
Port facilities | 2 |
Technology | 53 |