胀圈 : 63 phrases in 17 subjects |
Architecture | 1 |
Automobiles | 10 |
Chemistry | 6 |
Compressors | 1 |
Construction | 1 |
Drilling | 5 |
Electric machinery | 3 |
Electronics | 2 |
Engineering geology | 1 |
General | 2 |
Metallurgy | 1 |
Nautical | 1 |
Oil / petroleum | 4 |
Plastics | 2 |
Rail transport | 1 |
Steel production | 1 |
Technology | 21 |