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生产试验: 95 phrases in 21 subjects |
Agriculture | 3 |
Animal husbandry | 1 |
Automobiles | 1 |
Aviation | 13 |
Business | 6 |
Commerce | 2 |
Compressors | 1 |
Economy | 4 |
Electric machinery | 1 |
Electronics | 10 |
Engineering geology | 3 |
General | 3 |
Hydroelectric power stations | 1 |
Management | 1 |
Metallurgy | 5 |
Mining | 2 |
Oil / petroleum | 5 |
Plastics | 3 |
Space | 12 |
Technology | 16 |
Textile industry | 2 |