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标记符 : 30 phrases in 12 subjects |
Agriculture | 1 |
Architecture | 1 |
Automobiles | 1 |
Aviation | 2 |
Electronics | 1 |
General | 2 |
Information technology | 1 |
Oil / petroleum | 1 |
Project management | 1 |
Space | 5 |
Technology | 12 |
Telecommunications | 2 |