可以把含水量和势作为应变量来写非饱和方程。

The unsaturated equations may be written with moisture content and potential as the dependent variables.

youdao

理想流和势流。

Ideal and potential flows.

youdao

先给出了含有一个任意函数的线性波动方程的古典和势对称的完全分类。

In this paper, a complete classical and potential symmetry classification is obtained for a linear wave equation containing an arbitrary function.

youdao

But because in many cases we can reasonably either model or measure equations of state, collect data for a material for its temperature, pressure, volume relations, then in fact if we can relate all these quantities to those then in fact we really can calculate essentially all of the thermodynamics. For the material.

但是因为在很多情况下,我们能够合理的给出状态方程的模型,或者通过收集一个物质的，温度，压强和体积之间的关系,来测量其状态方程，所以实际上我们可以给出压强等物理量,和热力学势之间的关系,并计算出所有的热力学势，对于给定的物质。

麻省理工公开课 - 热力学与动力学课程节选