| |||
aeronautical communication; aviation communications | |||
air communication |
航空 通 信 : 124 phrases in 10 subjects |
Air defense | 6 |
Aviation | 60 |
Business | 3 |
Electronics | 13 |
General | 12 |
International trade | 1 |
Space | 18 |
Technology | 4 |
Telecommunications | 1 |
United States | 6 |