... opening in flat head 在平板封头上的开孔; 平盖开孔 opening in head 封头开孔 reversed dished head 凹形封头 ...
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由经典力学理论，对于球形封头开孔应力集中问题，大都采用近似计算公式。
According to the theory of classical mechanics, the problem of stress concentration of open cell of spherical cover end is always solved by approximate computing formula.
开孔，封头和壳体，计算。
本文对外压锥形封头设计以及开孔接管处的应力强度等两个问题进行分析。
In this paper, two problems-the design of conical heads subjected to external pressure and stress intensity existing around opening are analyzed and discussed.
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