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1·In flattening test, the crack happened in the lagest deformation parts.

压扁试验中试样的最大变形部位出现裂纹状缺陷。

2·This design mainly finishes the measurement of Cutting Edge Speed of flattening test for Seamless Gas Cylinder.

本设计主要完成大容积钢制无缝气瓶压扁试验压头速率的测量。