The mid part is regarded as a segment of the whole ring and is calculated by the method of stress analysis which is based on the theory of shell.
中间部位视为整体环的一部分，按壳体理论应力分析方法计算。
Analytical method is raised to calculate the distortion on the end of seal ring by application of the theory of moment force of shell and the relevant calculation procedure is prepared.
提出了应用壳体力矩理论求解密封环端面力变形的解析解的方法，并编制了相应的计算程序。
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