| |||
early warning aircraft; early warning airplane | |||
picket |
预 警机 : 66 phrases in 12 subjects |
Air defense | 14 |
Aviation | 12 |
China | 5 |
Earth sciences | 1 |
Electronics | 8 |
Finances | 1 |
General | 13 |
Nautical | 3 |
Rail transport | 1 |
Space | 4 |
Technology | 3 |
United Nations | 1 |