電子管的英文：
radio tube; vacuum tube

參考例句：
  • Hollow cathode lamp
    空心陰極電子管
  • An electron tube with a photosensitive cathode.
    光電管具有感光的陰極電子管
  • The transmitter was pulsed by an electron tube.
    電子管使發(fā)射器產(chǎn)生脈沖波。
  • UHF electronstatic control tube
    靜電控制超高頻電子管(柵控管)
  • 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。
  • The electronmagnetic wave is produced by microwave tubes called klystrons
    電磁波是由一種稱為速調(diào)管的微波電子管產(chǎn)生的。
  • Electronics, on the other hand, deals with the movement of free electrons in a vacuum or in semiconductors.
    而另一方面電子學(xué)則論述自由電子在電子管或半導(dǎo)體里流動的情況。
  • An electron tube having a cathode and an anode.
    電子二極管有一個陽極和一個陰極的電子管
  • Small size and low power consumption are the two important factors that make transistors preferable to electron tubes.
    體積小和消耗功率低，這兩個重要因素使晶體管比電子管優(yōu)越。
  • The crystal detector was soon replaced by the thermionic value and had largely become obsolete by 1939
    晶體檢波器不久即被熱電子管所代替，到1939年已大部分變成了廢物。
radio是什么意思：
n. 收音機；無線電廣播臺
v. 用無線電發(fā)送
  • radio broadcasttransmitting statio
    無線電廣播發(fā)射臺
  • Send a message by radio
    用無線電發(fā)送訊息；發(fā)報
  • Radio station is off the air.
    廣播之聲停止了廣播。
tube是什么意思：
n. 管子；軟管；內(nèi)胎；地鐵；電視
v.把…裝管；把…弄成管狀；用管輸送；乘地鐵；不及格
  • The tubes are individually connected in order to the tubes of a multiple manometer
    這些總壓管依次分別連接到一個多管壓力計的各個管子上。
  • darcy impact pressure tube
    達喂力管
  • inner core tube
    內(nèi)倒望遠鏡
vacuum是什么意思：
n. 真空；空白；空虛；真空吸塵器
v. 用真空吸塵器清掃
  • Is there a vacuum cleaner?
    有真空吸塵器嗎？
  • Some people are living in a vacuum.
    有些人過著與世隔絕的生活。
  • clean(sth)with a vacuum cleaner
    用真空吸塵器清掃（某物）

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