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management operating system; supervisory operating system | |||
management operation system | |||
supervisor operation system | |||
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management operating system |
管理操作系统: 25 phrases in 7 subjects |
Air defense | 1 |
Aviation | 5 |
Economy | 2 |
Electronics | 10 |
Information technology | 2 |
Space | 3 |
Technology | 2 |