Chinese word

真空

Pronunciation

Pinyinzhēn kōng

Meaning

  • nounvacuum

Example

这个容器里是真空。zhè ge róng qì lǐ shì zhēn kōng

There is a vacuum in this container.

Illustration for 真空 (vacuum)

More examples

把样品放进真空室可以去除表面的气体。bǎ yàng pǐn fàng jìn zhēn kōng shì ké yǐ qù chú biǎo miàn de qì tǐ

Putting the sample in a vacuum chamber can remove gas from its surface.

Core concept

A region made almost empty of matter, whether naturally or by pumping.

Common phrases

  • 真空室zhēn kōng shì

    vacuum chamber

  • 真空状态zhēn kōng zhuàng tài

    vacuum state

  • 真空密封zhēn kōng mì fēng

    vacuum sealing

Similar words

空气kōng qì: The gases around people and animals that support breathing.
空间kōng jiān: The area available for people or things to exist, move, or be placed.

Definition in Chinese

没有或几乎没有物质存在的空间，也可指通过抽气形成的低压状态。méi yǒu huò jī hū méi yǒu wù zhì cún zài de kōng jiān yě kě zhǐ tōng guò chōu qì xíng chéng de dī yā zhuàng tài

Word origin

The compound 真 (zhēn, "real") + 空 (kōng, "empty space") presents 真空 (zhēnkōng, "vacuum") as space that is genuinely empty, though scientific use allows a small amount of matter to remain.

Usage tips

  • In everyday Chinese, this word often appears in discussions of food packaging, pumps, and sealed containers, so it is useful for understanding household products and labels.

Opposites

  • 大气压dà qì yāatmospheric pressurenoun

Related words

  • 真空室zhēn kōng shìvacuum chambernoun
  • 真空度zhēn kōng dùdegree of vacuumnoun

Word lists with this word