| |||
aerial delivery system; airline | |||
air transportation system |
空运系统 : 51 phrases in 13 subjects |
Air defense | 3 |
Animal husbandry | 1 |
Artificial intelligence | 1 |
Aviation | 28 |
Chemistry | 1 |
Electronics | 1 |
General | 1 |
Metallurgy | 1 |
Nautical | 1 |
Remote sensing | 1 |
Space | 4 |
Technology | 6 |
United States | 2 |