In this paper we derive the quantitative analysis formula of Joule-Thomsonian coefficient from the knowledge of common physics.
本文用普通物理热学的知识推导出焦尔·汤姆逊系数的定量分析公式。
Methods: Refering to the method of electronic glottis graph and mathematics analysis, using 16 characteristic dots, an analysis method and quantitative analysis formula are established.
方法：参照电声门图的研究方法，利用16个特征点，运用数学分析，建立声带振动波形图分析方法及量化分析公式。
Currently, determination of compressor blade number is mostly base on experimental formula. The effect of Impeller with different blade number on flow field lacks of quantitative analysis.
目前离心式压缩机叶片数目的确定主要根据经验公式，同一叶轮取不同数目的叶片对叶轮内部流场的影响缺乏定量的分析。
Formula of quantitative calculation of time domain analysis are derived, and selection method for some key parameters is introduced.
推导了时间域分析定量计算的公式，并给出了一些关键参数的选择方法。
Finally, the application of this formula and the importance of the quantitative risk analysis are expounded in the concrete by way of example.
最后以实例具体说明了该公式的运用，以及定量风险分析的重要性。
Furthermor, the relevant method for quantitative analysis and its calculating formula are developed.
并提出了相应的定量分析方法和计算公式。
Furthermor, the relevant method for quantitative analysis and its calculating formula are developed.
并提出了相应的定量分析方法和计算公式。
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