…A tachometer is an instrument that usually measures the number of mechanical revolutions. It may also be called a tachometer or a rotational speed meter. When measuring only revolutions that are not related to time, it is called a counter, a number meter, a degree meter, etc. … *Some of the terminology that mentions "tachometer" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ふつう,機械的な回転数を測定する計器が回転計である。またこれは,回転速度計あるいはタコメーターtachometerとも呼ばれる場合がある。時間に無関係な回転のみを測定する場合には,カウンター,回数計,度数計などと呼ばれている。… ※「tachometer」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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