an engine's rev-counter 发动机转速计
rev-counter 转速计
electric rev counter 电动转数表
electronic rev counter 电子转数计
N [英国英语] → an informal or dialect word for tachometer
The needle on the rev counter soared.
转速计的指针猛升。
Other screen is the rev counter which is fixed on the steering wheel.
另一个显示屏是速度表，安装在方向盘上。
In sunlight the warning lights are difficult to see and it's pretty much only the analogue rev counter that can be seen clearly.
在阳光的警示灯都很难看到，它的几乎唯一的模拟转速表，可以清楚地看到。
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