drag-type tachometer

例句：

1. 1. The engineer used a drag-type tachometer to measure the speed of the engine.
   工程师使用拖拉式转速表来测量发动机的速度。
2. 2.The car's performance was tested using a drag-type tachometer.
   汽车的性能通过拖拉式转速表进行了测试。
3. 3. The technician replaced the worn-out drag-type tachometer with a new one.
   技术人员用一个新的拖拉式转速表替换了磨损的转速表。