Each model's structure in fracture section is observe with SEM.
扫描电镜观察瓷断面的结构。
The impact fracture section of modified unsaturated polyester showed ductile failure.
所得改性不饱和聚酯的冲击断裂截面表现为韧性断裂；
The retardation of tensile overload will reduce the 321SS crack growth speed for the furcation on the fracture section.
拉伸超载能阻滞321不锈钢的疲劳裂纹扩展速率，样品断面有明显的周期性的裂纹偏折或分叉；
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