英语语法分析

The rib fractography of cross-linked PMMA has been explored by optical microscopy.

用光学显微镜观察了交联有机玻璃断面上的肋状形态。

At present, the knowledge of fractography of composite materials is growing and paid much attention.

目前，有关复合材料断裂图像的知识仍是有限的，但已引起人们的高度重视。

The fractography reveals that the alloy has high ductility because the dendritic phases produce in the alloy.

合金的断口分析结果表明，由于产生了塑性枝晶相，因此该合金具有较高塑性。