正压 : 250 phrases in 20 subjects |
Astronautics | 1 |
Aviation | 2 |
Chemistry | 2 |
Drilling | 1 |
Electronics | 32 |
General | 61 |
Geology | 3 |
Law | 2 |
Medical | 18 |
Metallurgy | 1 |
Meteorology | 2 |
Microelectronics | 4 |
Military | 3 |
Nautical | 4 |
Oil / petroleum | 2 |
Oil and gas | 3 |
Oil processing plants | 21 |
Oilfields | 1 |
Security systems | 1 |
Technology | 86 |