thermophone
/thur-muh-fohn/US // ˈθɜr məˌfoʊn //
热风琴,热风机,热风炉,热风枪
Definitions
n.名词 noun
- 1
- : an electroacoustic transducer that forms sound waves by the expansion and contraction of the air adjacent to a conductor that varies in temperature according to the magnitude of the current passing through it; formerly used to calibrate microphones.
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