flowing-pressure gradient

例句：

1. 1.The flow of water is influenced by the pressure gradient between the river and the sea.
   水流受到河流与海洋之间压力梯度的影响。
2. 2.The pressure gradient in the atmosphere affects the weather patterns around the world.
   大气中的压力梯度影响全球的天气模式。
3. 3. The study of the flow of water and the pressure gradient is crucial for understanding the dynamics of the Earth's surface.
   研究水流和压力梯度对于理解地球表面的动力至关重要。