Definition
n.
vacuum tube (old-style electronic component, also called a thermionic valve)
Examples
- 真空管。Zhè tái lǎo shōuyīnjī lǐ hái yǒu zhēn kōng guǎn.There are still vacuum tubes in this old radio.
- 真空管。zhēn kōng guǎn zài zǎoqí jìsuànjī zhōng fēicháng zhòngyào.Vacuum tubes were very important in early computers.
- 真空管。Xiàndài de diànqì yǐjīng bù yòng zhēn kōng guǎn le.Modern electronic devices no longer use vacuum tubes.
Browse more HSK 7-9 words or search the full 43,000-word dictionary.