技术 资 料 : 68 phrases in 20 subjects |
Agriculture | 1 |
Air defense | 2 |
Automobiles | 2 |
Aviation | 13 |
China | 1 |
Commerce | 6 |
Consulting | 1 |
Desert science | 1 |
Earth sciences | 7 |
Ecology | 1 |
Economy | 4 |
General | 2 |
Management | 1 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Shipbuilding | 2 |
Space | 3 |
Technology | 13 |
Telecommunications | 4 |
United States | 1 |