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结构 单 元 : 84 phrases in 21 subjects |
Agriculture | 2 |
Automobiles | 1 |
Aviation | 6 |
Bridge construction | 1 |
Business | 1 |
Chemistry | 3 |
Computer networks | 1 |
Computers | 1 |
Construction | 3 |
Electric machinery | 1 |
Electronics | 4 |
General | 2 |
Genetics | 4 |
Information technology | 2 |
Oil / petroleum | 4 |
Oil processing plants | 1 |
Plastics | 7 |
Polymers | 11 |
Space | 2 |
Technology | 24 |
Textile industry | 3 |