天车: 195 phrases in 20 subjects |
Air defense | 5 |
Automobiles | 35 |
Business | 2 |
Communications | 2 |
Drilling | 38 |
Ecology | 1 |
Economy | 2 |
Electronics | 4 |
Environment | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 7 |
International trade | 1 |
Mechanics | 3 |
Metallurgy | 3 |
Nautical | 1 |
Oil / petroleum | 26 |
Space | 4 |
Sports | 1 |
Technology | 54 |
Telecommunications | 1 |