liquid level manometer

例句：

1. 1. The liquid level manometer is usedto measure the height of liquid in acontainer.
   液体水平计用于测量容器中液体的高度。
2. 2. The engineer carefully checked the liquidlevel manometer before starting the experiment.
   工程师在开始实验前仔细检查了液体水平计。
3. 3. The liquid level manometer wasused to monitor the level of oil inthe tank.
   液体水平计被用来监测油箱中的油的水平。