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operational level |
操作级 : 45 phrases in 13 subjects |
Agriculture | 1 |
Aviation | 4 |
Chemistry | 1 |
Economy | 1 |
Electronics | 16 |
Information technology | 3 |
Mining | 2 |
Multimedia | 1 |
Oil / petroleum | 2 |
Project management | 1 |
Space | 4 |
Technology | 6 |
Telecommunications | 3 |