It exhibits improved strength, stiffness and creep resistance compare to standard blow molding grades.

它具有更好的强度，刚度和抗蠕变性比较标准的吹塑等级。

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The paper introduces the stiffness testing method used in automotive circle and the test method of the second class stiffness leaf spring in IVECO automotive leaf spring standard.

介绍了行业中的刚度测试方法和IVECO汽车板簧标准中的二级刚度的板簧刚度测试方法。

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Based on site measuring and laboratory testing, these parameters 'mean and standard deviation are calculated, and the linear stiffness for the system of formwork supports is measured.

通过现场实测，统计获得了模板支撑负担面积、支撑偏斜率随机变量的均值与标准差；通过室内试验与现场实测获得了模板支撑体系的线刚度参数。

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