如 许用弯曲应力 1.5S 许用拉应力0.67Sy 许用剪切应力0.6Sm(0.8Sm) S许用应力 Sm 设计应力强度 Sy 最小屈服强度 Sm=0.67Sy... 继续阅读>
A1--A48... 继续阅读>
压力容器GB150,151计算手册... 继续阅读>
阀门标准大全... 继续阅读>
阀门卷 (阀门标准大全)... 继续阅读>
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