从本质上分析了理想气体状态方程的局限性，提出了利用压缩系数提高天然气流量精度的概念，从而改进了状态方程。
Analying the limit of state equation of ideal gas in substance, the conception that using compressional factor improves the accuracy of gas flux is introduced and the state equation is mended.
为了了解由阀门注入的快速气体通过管道进入系统时的流动状态，必须求解在固定流量边界条件下的一维非线性扩散方程。
Flowing state of the gas during gas flows into the system was given by means of the calculation. The character of B-A nude gauge in flowing gases and the piezoelectric valve was measured.
为了了解由阀门注入的快速气体通过管道进入系统时的流动状态，必须求解在固定流量边界条件下的一维非线性扩散方程。
Flowing state of the gas during gas flows into the system was given by means of the calculation. The character of B-A nude gauge in flowing gases and the piezoelectric valve was measured.
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