vacuum tube

• In the second generation of computers , transistors replaced vacuum tubes
  在第二代计算机中，晶体管取代了真空管。
• Baseless subminiature vacuum tube
  无座指形管
• Insert power plug , vacuum tube and connect casing line as per casing sequence
  插上电接插头、真空管，按缸序接好缸线；
• Vacuum tubes radio
  真空电子管无线电
• Two electrode vacuum tube
  二极真空管
• Vacuum tube technology
  真空管参数：
• Four russian eh6922 vacuum tubes with gold plated pins for output amplification
  四枝俄罗斯eh6922镀金脚电子管作为输出放大。
• The technic has been successfully adopted in the manufacture of microwave vacuum tubes
  这一工艺已成功应用于产品的批量生产。
• Vacuum tube voltmeter
  电子管电压表
• Love vacuum tube iii
  情歌真空管iii