推进 装置: 129 phrases in 16 subjects |
Air defense | 1 |
Animal husbandry | 1 |
Architecture | 2 |
Automobiles | 2 |
Aviation | 28 |
Drilling | 1 |
Earth sciences | 1 |
Electronics | 3 |
French | 1 |
General | 1 |
Metallurgy | 2 |
Nautical | 22 |
Oil / petroleum | 1 |
Shipbuilding | 13 |
Space | 24 |
Technology | 26 |