tachometer

🇬🇧/tæˈkɒmɪtə(r)/ 🇺🇸/tæˈkɑːmɪtər/📚 37300
A tachometer is an instrument in a car or an aeroplane which shows the speed of the engine. 转速计

noun [专属名词]转速计,转速表

The tachometer registers a rather high 3,000 rpm at 70 mph.
转速计在时速70英里时显示每分钟高达3000转。

单词造句:
网友用“Tachometer”造句精选
To make an rpm-drop test, a tachometer is needed . 做每分钟转速下降试验时,需要一个转速表。
An electrical tachometer receives voltage pulses from the ignition system, usually the coil. 电器转速表从点火系统中接受电压脉冲,通常是线圈。