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。
In this paper we derive the quantitative analysis formula of Joule-Thomsonian coefficient from the knowledge of common physics.
从滑动接触应力的角度，为轮轨关系的许多实际课题的研究提供了一个计算分析公式。
A calculating and analyzing formula is provided, from the point of view of slipping contact stresses, for the researching of many practical projects concerning the wheel-rail relations.
为了方便初步设计，还给出了一些典型变刚度加肋圆柱壳的强度和稳定性近似分析公式。
In order to make the initial design more convenient, some approximate analysis formulae of strength and stability of typical nonuniform stiffened cylindrical shell are also given in the paper.
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