distant-reading tachometer

例句：

1. 1. This new tachometer is designed to measure the distance traveled by a vehicle.
   这款新型计器设计用来测量车辆行驶的距离。
2. 2. The engineer used the tachometer to monitor the engine's performance.
   工程师使用这个计器来监测发动机的性能。
3. 3. The tachometer displayed a warning light when the vehicle reached its maximum speed.
   当车辆达到最大速度时，计器显示了一个警告灯。