同根派生 electron tube相關(guān)詞英漢例句用作名詞 (n.)Not any air gets into the vacuum tube.沒有空氣能進(jìn)入真空管。Electron tubes are the main component for this machine.真空管是這種機(jī)器的主要零件。In a radio tube there is a source of electrons.在電子管中，有一個電子發(fā)射源。A tube or a transistor can amplify an incoming signal.電子管和晶體管能放大輸入的信號。electron tube更多例句