proved damage

Because the stress damage threshold intensity is smaller than the melting damage threshold intensity, permanent damage in optical material is produced when circumference stress exceeds the tensile strength. The damage morphology of K9 glass induced by laser is proved to be cleavage burst.

由于K9玻璃的应力损伤阈值小于熔融损伤阈值，因此当激光作用引起的环向热应力大于材料的抗拉强度时，材料发生永久性损伤，损伤形态为拉伸解理。

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ConclusionThe experiments have proved that Ganlanning can clear throat, relieve the damage to the gastric musoca and the reaction of swirl headache caused by alcohol.

结论橄榄醽具有清咽利喉，减轻酒精对胃黏膜的损伤和头晕头痛反应等作用。

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