This standard describes the procedure for obtaining the Hydrostatic Design Stress (maximum working strength) for any thermoplastic pipe material at any practical temperature.

这个标准描述了获得流体静力设计应力(最大工作强度)的步骤，用于任何实际温度下的任何热塑塑料管道材料。

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Through test and analysis of working stress on balance beam and lengthwise beam of dozer frame, a strength design method and the basis for compiling load spectrum are given in the paper.

通过对推土机平衡梁和车架纵梁的工作应力测定与分析，掌握了推土机的强度设计方法，为编制载荷谱打下基础。

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The many indefinite exists in the design parameters and influence factors of the working stress and allowable stress of the roller movable teeth drive.

滚子活齿传动设计中，在工作应力、许用应力的设计参数和影响因素中存在着许多不确定性。

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