time recorder: 31 phrases in 14 subjects |
Anti-air artillery | 1 |
Automobiles | 2 |
Economy | 2 |
Electronics | 1 |
Information technology | 1 |
Medical | 1 |
Military | 5 |
Oil / petroleum | 5 |
Oilfields | 1 |
Physics | 2 |
Security systems | 2 |
Shipbuilding | 1 |
Technology | 5 |
Transport | 2 |