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antenna rotation |
天线旋转 : 56 phrases in 12 subjects |
Air defense | 11 |
Construction | 1 |
Earth sciences | 1 |
Electronics | 5 |
General | 2 |
Information technology | 4 |
Oil / petroleum | 1 |
Radio | 3 |
Shipbuilding | 2 |
Space | 4 |
Technology | 21 |
Telecommunications | 1 |