rev counter meaning in English

转数计

And the rev counter backlight changes to bright red to let you know when you hit the limiter
当达到极限速度时，速度表背光灯会变成亮红色以示提醒。
But even though the dash is obviously far more than just a rev counter , team mclaren mercedes believes in keeping it simple
尽管仪表板显然不仅仅是一个转速计算器，迈凯轮车队仍坚持保持他的简洁。
Other screen is the rev counter which is fixed on the steering wheel . and on the vtr + and vts versions the dual zone climate control
另一个显示屏是速度表，安装在方向盘上。而且在vtr和vts上的是双区空调控制版本。