["Pip. 管道应力分析问题","Pechinaltlastanalyse-Probleme","Du sagst von der Kälteverzerrungsanspannung,unehme.ususehhenmehr-zumleszzen-buch-zz"]u-zzver-zich"]
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最近在看唐的压力管道应力分析，其中书中讲到预紧力对管道的二次应力校核无影响。该怎么理解，求高手指点？
你说的是冷紧，多看看书
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