试验 台 : 231 phrases in 15 subjects |
Aerohydrodynamics | 1 |
Automobiles | 2 |
Aviation | 10 |
Chemistry | 1 |
Ecology | 1 |
Electronics | 11 |
General | 63 |
Helicopters | 1 |
Jet engines | 1 |
Military | 3 |
Missiles | 4 |
Nautical | 5 |
Oil processing plants | 3 |
Rail transport | 2 |
Technology | 123 |