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圆头 钉: 162 phrases in 22 subjects |
Agriculture | 3 |
Architecture | 11 |
Automobiles | 14 |
Aviation | 10 |
Bridge construction | 7 |
Chemistry | 4 |
Compressors | 2 |
Construction | 2 |
Drilling | 2 |
Electric machinery | 2 |
Electronics | 3 |
General | 1 |
Hydroelectric power stations | 2 |
Mechanic engineering | 1 |
Mechanics | 2 |
Metallurgy | 4 |
Oil / petroleum | 3 |
Shipbuilding | 1 |
Space | 1 |
Technology | 84 |
Textile industry | 1 |
Wind Energy | 2 |