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工 厂 试验 : 62 phrases in 15 subjects |
Automobiles | 3 |
Aviation | 4 |
Business | 3 |
Chemistry | 4 |
Communications | 1 |
Compressors | 1 |
Earth sciences | 2 |
Electronics | 1 |
General | 4 |
Mechanics | 3 |
Metallurgy | 15 |
Nautical | 1 |
Oil / petroleum | 1 |
Space | 4 |
Technology | 15 |