真空管

zhēnkōngguǎn

noun #51,391

Measure Word

一根真空管 gēn

Meanings

1 vacuum tube
2 thermionic valve
3 vacuum line (in car systems)

Characters

Examples

老式电视用真空管。

Lǎoshì diànshì yòng zhēnkōngguǎn.

Old televisions used vacuum tubes.

制动助力器的真空管漏气了。

Zhìdòng zhùlìqì de zhēnkōngguǎn lòuqì le.

The brake booster's vacuum line is leaking.

Tips

usage

Two senses: (1) the electronic vacuum tube used in mid-20th-century radios and amplifiers, still prized by audiophiles (胆机 'tube amp'); (2) the vacuum hose running from intake manifold to devices like the brake booster in a car.

Stroke Order

真 zhēn

空 kōng

管 guǎn