隔 环 : 68 phrases in 20 subjects |
Agriculture | 1 |
Anatomy | 1 |
Automobiles | 8 |
Aviation | 2 |
Chemistry | 3 |
Compressors | 3 |
Computer networks | 1 |
Drilling | 4 |
Ecology | 1 |
Electric machinery | 4 |
Electronics | 5 |
General | 2 |
Mechanic engineering | 1 |
Metallurgy | 3 |
Mining | 3 |
Oil / petroleum | 6 |
Power system protection | 1 |
Space | 1 |
Surgery | 1 |
Technology | 17 |