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direction coupler | |||
directional coupler | |||
directive feed | |||
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directional coupler |
定向 耦合器 : 60 phrases in 8 subjects |
Air defense | 9 |
Electric machinery | 1 |
Electronics | 22 |
General | 2 |
Information technology | 1 |
Shipbuilding | 4 |
Technology | 18 |
Telecommunications | 3 |