英语语法分析

The results show that the crack and the hole are the primary microdefect of fracture.

研究表明，“沿晶”、“多边化”和“扇形解理花样”是稀土锆合金断口最常见的微观形貌特征；

Annealing is effective on decreasing the microdefect density and the absorption of the films.

而退火对降低薄膜的微缺陷密度和吸收较有效。

Experimental results show that the microdefect in the alloys can improve the properties of the alloys apparently.

结果表明，合金微观缺陷的存在能大幅度提高金的性能。