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竖管: 164 phrases in 15 subjects |
Architecture | 1 |
Biotechnology | 1 |
Bridge construction | 1 |
Construction | 1 |
Ecology | 2 |
Electronics | 9 |
Engineering geology | 5 |
General | 2 |
Hydroelectric power stations | 2 |
Metallurgy | 2 |
Nautical | 1 |
Oil / petroleum | 5 |
Refrigeration | 3 |
Technology | 127 |
Water resources | 2 |