平衡状态: 74 phrases in 23 subjects |
Agriculture | 1 |
Automobiles | 2 |
Aviation | 4 |
Bridge construction | 3 |
Business | 2 |
Chemistry | 2 |
Commerce | 2 |
Electric machinery | 1 |
Electronics | 4 |
Engineering geology | 4 |
Environment | 1 |
Food service and catering | 1 |
General | 1 |
Hydroelectric power stations | 3 |
Information technology | 1 |
Life sciences | 1 |
Metallurgy | 10 |
Oil / petroleum | 2 |
Polymers | 1 |
Rail transport | 1 |
Space | 4 |
Technology | 21 |
Wind Energy | 2 |