slip tube type liquid level gauge

例句：

1. 1.The engineer used a slip tube type liquid level gauge to monitor the oil level in the tank.
   工程师使用一种滑管式液位计来监测油箱中的油位。
2. 2.The factory uses this type of liquid level gauge to ensure accurate oil levels.
   工厂使用这种类型的液位计来确保准确的油位。
3. 3.The technician checked the liquid level gauge before starting the pump operation.
   技术人员在启动泵操作前检查了液位计。