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词汇 phonomotor
释义

Definition of phonomotor in English:

phonomotor

noun
historical
  • A device in which sound waves cause a diaphragm to vibrate, which in turn drives a wheel.

Origin

Late 19th century; earliest use found in Scientific American.

Definition of phonomotor in US English:

phonomotor

noun
historical
  • A device in which sound waves cause a diaphragm to vibrate, which in turn drives a wheel.

Origin

Late 19th century; earliest use found in Scientific American.

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