冲击钻 机 : 100 phrase in 15 subjects |
Architecture | 1 |
Bridge construction | 1 |
Drilling | 2 |
Electronics | 4 |
Engineering geology | 18 |
General | 1 |
Hydroelectric power stations | 2 |
Mechanic engineering | 1 |
Mechanics | 2 |
Metallurgy | 2 |
Mining | 1 |
Oil / petroleum | 4 |
Project management | 1 |
Rail transport | 2 |
Technology | 58 |