C2 noun #65,239 よく出る

A device used to detect and measure static electricity; an electroscope.

electrometer 30秒で

  • (noun) A device used to detect and measure static electricity; an electroscope.
  • (noun) A precision voltmeter that draws almost no current from the circuit.

Meanings

  1. 1
    noun A device used to detect and measure static electricity; an electroscope.
  2. 2
    noun A precision voltmeter that draws almost no current from the circuit.
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