The paper listed the common error in mechanical property test of PC steel products.
分析、例举了预应力钢材力学性能试验中常见的误差！
Mechanical property test, end group analysis and SEM were adopted to study the ageing of PET and PBT composites.
采用拉伸强度与冲击强度测试、端基分析及扫描电镜分析等手段探讨了PET、PBT复合材料的老化机理和老化性能。
It can measure all kinds of mechanical property test, such as spline tension, holding tension, tearing, CBR upend, ball upend, Pierce and thickness measuring.
该测试仪可以完成土工布的各种力学性能测试试验，包括条样拉伸、握持拉伸、撕裂、CBR顶破、圆球顶破、刺破及厚度的测量。
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