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层状 的: 52 phrases in 19 subjects |
Agriculture | 7 |
Automobiles | 1 |
Computer networks | 1 |
Earth sciences | 1 |
Electronics | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 16 |
Genetics | 1 |
Geology | 3 |
Hydroelectric power stations | 2 |
Medical | 1 |
Metallurgy | 2 |
Nautical | 3 |
Oil / petroleum | 1 |
Plastic surgery | 1 |
Project management | 1 |
Skydiving | 1 |
Space | 1 |
Technology | 6 |