压实 度 : 50 phrases in 15 subjects |
Agriculture | 1 |
Architecture | 1 |
Aviation | 1 |
Bridge construction | 6 |
Desert science | 1 |
Engineering geology | 6 |
Explosives and Explosive Ordnance Disposal | 1 |
Geology | 2 |
Geophysics | 1 |
Hydroelectric power stations | 4 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Oil processing plants | 1 |
Rail transport | 1 |
Technology | 21 |