We could just collect a bunch of data. For a material .What's the volume it occupies at some pressure and temperature?

对一种物质我们可以得到一系列测量数据,在给定的温度和气压下,它的体积是什么？

麻省理工公开课 - 热力学与动力学课程节选

So from measured equation of state data, or from a model like the ideal gas or the van der Waal's gas or another equation of state you know this.

所以，从测量的到的状态方程的数据，或者从状态方程模型比如理想气体方程,范德瓦尔斯方程或者其他状态方程,我们就可以知道。

麻省理工公开课 - 热力学与动力学课程节选

But if you imagine making these measurements more and more and more quickly, in the end, you can measure what you can say is the acceleration now.

但如果你想越来越短的时间内,测量这些数据,最终,你会测量出你所说的现在的加速度

耶鲁公开课 - 基础物理课程节选

So again, we can measure equation of state data.

我们可以通过测量得到状态方程的数据。

麻省理工公开课 - 热力学与动力学课程节选