开孔平面问题
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perforated plane problem
穿孔面问题
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Secondly, the equivalent plane truss element analysis program of plane stress problem is worked out, by which cantilever beam, simple beam and perforated wall are analyzed.
其次，编制了平面应力问题等效铰结平面桁架单元有限元法分析计算机程序。
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