z0

1

Actually , if we look at a very easy case where this is just a horizontal plane , z0 well , the partial derivatives become just zero .

来看一个非常简单的情形，即在水平面上，不变，函数恒定，，z，equals，constant，，the，function，is，just，a，constant，偏导数变为。
2

In this paper , we try to introduce the volume function of inceptive cavitation bubbles , z0 ( r ), instead of the energy equation used in the reference [ 1 ] , for discussing cavitation similarity problem in similar flow systems .

在此基础上，引进空泡群的体积函数z0（r），代替前文中的能量方程式，讨论相似流动体系中的空化状态相似性问题。