But such force is ignored in structure design and strength calculation.
但在筒体结构强度设计计算中此项冲击力是忽略不计的。
And it is a long standing problem to simplify their strength calculation.
如何对其进行简化计算是一个由来已久的问题。
Perform mechanical stress, strength, and deformation calculation.
执行机械应力，强度和变形计算。
Perform mechanical stress, strength, and deformation calculation.
执行机械应力，强度和变形计算。
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