The volume is fixed by measuring a specific gas (liquid) of controlled temperature and pressure using a sample measurement tube.

通过使用样品测量管测量受控温度和压力的特定气体(液体)来固定体积。

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Several linear regression equations of the specific heat at constant volume for ideal gas based on MATLAB were proposed and proved by mathematical statistics, with maximum relative error less than 5%.

利用MATLAB的数值回归分析功能，得到了几种常见理想气体定容比热容与温度的线性回归公式，数理统计分析的结果证明了这些回归公式的合理性，回归公式的最大相对误差低于5%。

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