轴心受压构件试验可采用双刀口支座代替球铰支座；
Axial compression test can use double knife-edge bearing to instead spherical hinge bearing;
以扁球壳代替球壳缺陷部分，把其余部分的作用简化为弹性约束。
The imperfect part of a spherical shell is taken as a shallow spherical shell and the function of the remainder is simplified as the elastic constraints.
用于剪毛机刀片代替球化退火作毛坯预处理，淬火后刀片寿命大幅度提高。
The life of the sheep shearing machine cutter after quenching is improved largely by using the new process instead of traditional spheroidizing annealing.
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