fracture of the tooth造句

• The results showed that the fracture of the tooth - razor was brittle fracture , the material quality was normal , the main fracture reson was that the carbide in the microstructure of the tooth - razor was distributed as reticulation , the brittleness of the razor was increased and the toughness was decreased , so the tooth of the razor was broken by external force when it was working
  结果表明，该剃齿刀的断齿属于脆性断裂，主要是显微组织中的碳化物分布不均匀（呈网状分布） ，使刀具的脆性增大而强度、韧性下降，导致刀具在使用过程中由于外力的作用发生断齿。