[电] 电子管
词型变化:名词复数形式 : electron tubes

electron tube的用法和样例:

例句

用作名词(n.)
  1. Not any air gets into the vacuum tube.没有空气能进入真空管。
  2. Electron tubes are the main component for this machine.真空管是这种机器的主要零件。
  3. In a radio tube there is a source of electrons.在电子管中,有一个电子发射源。
  4. A tube or a transistor can amplify an incoming signal.电子管和晶体管能放大输入的信号。
【近义词】

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