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快 速 控制 : 40 phrases in 13 subjects |
Agriculture | 1 |
Air defense | 1 |
Automobiles | 3 |
Aviation | 3 |
Earth sciences | 1 |
Electric machinery | 2 |
Electronics | 10 |
Information technology | 2 |
Metallurgy | 2 |
Space | 2 |
Technology | 11 |
Textile industry | 1 |
United States | 1 |