真空管 (zhēn kōng guǎn) — vacuum tube (old-style electronic component, also called a thermionic valve)

Definition

Examples

• 这台老收音机里还有真空管。
  Zhè tái lǎo shōu yīn jī lǐ hái yǒu zhēn kōng guǎn.
  There are still vacuum tubes in this old radio.
• 真空管在早期计算机中非常重要。
  zhēn kōng guǎn Zài zǎo qī jì suàn jī zhōng fēi cháng zhòng yào.
  Vacuum tubes were very important in early computers.
• 现代的电器已经不用真空管了。
  Xiàn dài de diàn qì yǐ jīng bú yòng zhēn kōng guǎn le.
  Modern electronic devices no longer use vacuum tubes.