steam engine indicator

例句：

1. 1.The steam engine indicator shows that the engine is running smoothly.
   蒸汽引擎指示器显示发动机运行平稳。
2. 2. The engineer used the steam engine indicator to monitor the temperature of the oil.
   工程师使用蒸汽引擎指示器监测机油的温度。
3. 3.The steam engine indicator helped us to troubleshoot the problem quickly.
   蒸汽引擎指示器帮助我们迅速解决了问题。