first-class radio electronic certificate 一等无线电子员证书 ; 一级无线电电子证书
radio-electronic metrics [电子] 无线电电子测量学
second-class radio electronic certificate 二级无线电电子证书
class radio electronic certificate 一等无线电子员证书
radio electronic warfare 无线电电子作战
radio electronic combat 无线电电子战
radio electronic equipment 无线电电子设备
radio electronic transmitting antenna 无线电电子发射天线
Ladies and gentlemen attention please, the plane about to land, go back to their seats, fasten your seat belts, turn off all radio-electronic equipment, thank you for your cooperation.
各位乘客请注意，飞机即将降落，请回到自己的座位上，系好安全带，请关闭一切无线电电子设备，谢谢你的配合。
To avoid interferences, and keep the telescopes sensitive, radio telescopes are built in places where there are no human radio waves or electronic signals.
为了避免干扰，保持望远镜的灵敏度，无线电望远镜被建在没有人为的无线电波或电子信号的地方。
A receiver and amplifier receive the radio waves from the sub reflector, and make these weak radio waves strong enough to be recorded and turned into electronic signals.
接收器和放大器接收来自副反射器的无线电波，并使这些微弱的无线电波强大到足以被记录下来并转化成电子信号。
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