真空管

zhēnkōngguǎn
vacuum tube

CEDICT

  1. (electronics) vacuum tube
  2. vacuum tube

Wiktionary

将空气抽出至极低量的玻璃管。内置电极若干，以作整流、检波、放大电压之用。

重編國語辭典

Entry Composition

1 真空 zhēnkōng
  1. (physics, fig.) vacuum
  2. (slang) to not wear underwear
=2 管 guǎn variant of 管 guǎn
=2 管 guǎn
  1. to take care (of)
  2. to control
  3. to manage
  4. to be in charge of
  5. to look after
  6. to run
  7. to care about
  8. tube
  9. pipe
  10. woodwind
  11. classifier for tube-shaped objects
  12. particle similar to 把 bǎ in 管...叫 constructions
  13. writing brush
  14. (coll.) to
  15. towards

Related entries

电子管 diànzǐguǎn
  1. valve (electronics)
  2. vacuum tube