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进路控制 | |||
路由控制; 航线控制 |
route control: 47 phrases in 12 subjects |
Air defense | 2 |
Aviation | 6 |
Communications | 8 |
Computer networks | 1 |
Electronics | 4 |
General | 2 |
Information technology | 2 |
Rail transport | 4 |
Shipbuilding | 1 |
Space | 1 |
Technology | 14 |
Telecommunications | 2 |