过滤 层: 80 phrases in 17 subjects |
Agriculture | 1 |
Architecture | 1 |
Aviation | 2 |
Chemistry | 4 |
Computer networks | 2 |
Earth sciences | 1 |
Ecology | 3 |
Electric machinery | 2 |
Electronics | 8 |
Engineering geology | 4 |
General | 2 |
Genetics | 1 |
Metallurgy | 2 |
Oil / petroleum | 6 |
Rail transport | 2 |
Space | 1 |
Technology | 38 |