电子组 件: 104 phrases in 14 subjects |
Air defense | 1 |
Aviation | 31 |
Business | 1 |
Earth sciences | 1 |
Electronics | 40 |
General | 3 |
Geophysics | 2 |
International Monetary Fund | 1 |
Mechanics | 2 |
Oil / petroleum | 1 |
Project management | 2 |
Shipbuilding | 2 |
Space | 14 |
Technology | 3 |