gravity water

例句：

1. 1.The gravity water flows slowly through the pipeline.
   重力水缓慢地流过管道。
2. 2.The weight of the water is measured by its gravity.
   水的重力通过其重量测量。
3. 3. The gravity water is used to cool down the room temperature.
   重力水用于冷却房间的温度。