radial probability density

例句：

1. 1.The radial probability density of a distribution is the ratio of the number of points in the distribution to the total number of points in the sample space.
   一个分布的径向概率密度是该分布中点数与样本空间总点数的比例。
2. 2. In probability theory, the radial probability density is used to describe the likelihood of an event occurring at a givenpoint on a curve.
   在概率理论中，径向概率密度用于描述事件在曲线上某一点发生的可能性。
3. 3.The radial probability density can be used to model the behavior of particles in a fluid flow, such as the motion of water molecules in a liquid.
   径向概率密度可以用来模拟流体流动中粒子的行为，例如水分子在液体中的运动。