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操作员甲 |
operator A : 18 phrases in 10 subjects |
Earth sciences | 1 |
Economics | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Information technology | 1 |
Nautical | 1 |
Project management | 1 |
Technology | 3 |
Telecommunications | 3 |
Transport | 2 |