centrifugal pump laws

例句：

1. 1. The centrifugalforce causes the particles to move in acircle.
   离心力导致粒子沿圆周运动。
2. 2. The centrifugal pump is used toseparate liquids based on their density.
   离心泵用于根据密度分离液体。
3. 3. The centrifugal force can be used to spin adisk or other rotating object.
   离心力可以用来旋转磁盘或其他旋转物体。