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有效系数 : 106 phrases in 26 subjects |
Agriculture | 1 |
Animal husbandry | 2 |
Architecture | 2 |
Automobiles | 2 |
Aviation | 3 |
Business | 1 |
Chemistry | 1 |
Construction | 2 |
Earth sciences | 5 |
Economy | 1 |
Electronics | 6 |
Engineering geology | 2 |
Geophysics | 1 |
Hydroelectric power stations | 1 |
Information technology | 1 |
Mechanics | 1 |
Metallurgy | 18 |
Oil / petroleum | 4 |
Oil processing plants | 1 |
Otorhinolaryngology | 1 |
Plastics | 1 |
Project management | 2 |
Refrigeration | 1 |
Space | 5 |
Technology | 38 |
Wind Energy | 3 |