liquid level gauge with magnetic buoyage

例句：

1. 1. The engineer useda liquid level gauge to check thelevel of oil in the tank.
   工程师使用液位计检查油箱中的油位。
2. 2.The doctor used a liquid level gauge tomonitor the patient's fluid levels.
   医生使用液位计监测患者的液体水平。
3. 3.The engineer used a liquid level gauge toensure that the tank was filled correctly.
   工程师使用液位计确保油箱被正确填充。