noun🔗ShareタコメーターA device for measuring the revolutions per minute (RPMs) of a revolving shaft, as with the driveshaft of an automobile."The driver glanced at the tachometer to make sure the engine's RPMs were not too high. "運転手は、エンジンの回転数が高すぎないことを確認するために、タコメーターに目をやりました。devicemachinevehicletechnologyelectronicstechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share回転計A device for measuring or indicating velocity or speed, as of blood, a river, a machine, etc."The mechanic checked the car engine's speed using a tachometer. "整備士はタコメーターを使って車のエンジンの速度をチェックしました。devicemachinetechnicalelectronicsvehiclephysicsscienceChat with AIVocabulary GamePractice Reading
