frozen and thaw

• 冻融

frozen and thaw的用法和样例：

例句

1. The products belong to microbial agents, to room temperature preservation, no repeated freezing and thawing.
   本产品属于微生物制剂，需常温保存，严禁反复冻融。
2. The result shows that the strength of rock evidently reduces with the increase of number of freezing and thawing cycle.
   此外也分析了岩石边坡侵蚀过程的机理及影响因素，随着冻融次数的增加，岩石的抗压强度显著降低。