| |||
situation display |
位置 显示 : 139 phrases in 16 subjects |
Air defense | 21 |
Automobiles | 1 |
Aviation | 14 |
Construction | 2 |
Earth sciences | 8 |
Ecology | 1 |
Electronics | 14 |
General | 12 |
Nautical | 1 |
Nursing | 1 |
Oil / petroleum | 1 |
Radio | 4 |
Rail transport | 2 |
Shipbuilding | 1 |
Space | 22 |
Technology | 34 |