ablation necking

• 烧蚀颈缩

ablation necking的用法和样例：

例句

1. Extensive through-thickness shear causes crack-tip necking.
   大范围的穿透厚度剪切引裂纹顶端的颈缩。
2. But the stress-strain relationship is in complex stress condition after the necking starts.
   但是，从颈缩开始，其应力应变关系处于复杂应力状态。