填隙 : 246 phrases in 27 subjects |
Air defense | 2 |
Architecture | 14 |
Automobiles | 6 |
Aviation | 2 |
Chemistry | 3 |
Compressors | 2 |
Construction | 2 |
Dentistry | 1 |
Desert science | 1 |
Drilling | 3 |
Earth sciences | 1 |
Electric machinery | 4 |
Electronics | 12 |
Engineering geology | 8 |
Football | 1 |
General | 19 |
Genetics | 1 |
Hydroelectric power stations | 1 |
Management | 1 |
Mechanic engineering | 1 |
Metallurgy | 22 |
Oil / petroleum | 15 |
Plastics | 4 |
Space | 5 |
Technology | 108 |
Telecommunications | 4 |
Wind Energy | 3 |