阀杆 : 128 phrases in 14 subjects |
Armored vehicles | 3 |
Automobiles | 7 |
Construction | 1 |
Drilling | 4 |
Electronics | 12 |
General | 45 |
Mechanic engineering | 2 |
Military | 2 |
Nautical | 2 |
Oil / petroleum | 2 |
Oil processing plants | 3 |
Oilfields | 2 |
Rail transport | 1 |
Technology | 42 |