不规则断口

irregular fracture的用法和样例:

例句

  1. It is brittle and breaks with a conchoidal fracture surface.性脆,具贝壳状断口。
  2. The tesile fracture is mixture of quasicleavage and touph dimple.拉伸断口为韧窝和准解理混合断裂。

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a nancy boy
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