









vacuum tube
In semiconductor receivers transistors take the place of vacuum tubes.
The driver used the dial mounted on the dash to control the flow of air into the vacuum chamber.

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Open the tool →真空管 (zhēn kōng guǎn) means “vacuum tube”.
真空管 is pronounced zhēn kōng guǎn in Mandarin Chinese.
“vacuum tube” is 真空管 (zhēn kōng guǎn) in Chinese.
This page has 2 example sentences using 真空管, each with pinyin and an English translation.