The theoretical formula about vacuity in vacuum tube and pore-water pressure at the observation point was obtained in this paper by using equationofgasstate and equilibrium equation.
根据气体状态方程和平衡方程，推导出在某点真空表反映的真空度值与孔压计反映的孔压差的理论关系式。
2
Let's try it with a different equationofstate, that isn't quite as simple as the ideal gas case.
考虑一个不同的状态方程，这状态方程不像理想气体状态方程那么简单。
3
So from measured equationofstate data, or from a model like the ideal gas or the van der Waal's gas or another equationofstate you know this.