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词汇 electromotograph
释义

Definition of electromotograph in English:

electromotograph

nounɪˌlɛktrə(ʊ)ˈməʊtəɡraefɪˌlɛktrə(ʊ)ˈməʊtəɡrɑːf
Electricity historical

  • A device invented by Thomas Edison for producing movement of a lever (in a telegraph) or a diaphragm (in a telephone) by utilizing the variation in friction between two conductors in relative motion when the current between them varies.

Origin

Late 19th century.

Definition of electromotograph in US English:

electromotograph

noun
Electricity historical

  • A device invented by Thomas Edison for producing movement of a lever (in a telegraph) or a diaphragm (in a telephone) by utilizing the variation in friction between two conductors in relative motion when the current between them varies.

Origin

Late 19th century.
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