英语语法分析

Saed," I said, "don't take Arabic."

我说，“Saed，不要说阿拉伯语了

The selected area electron diffraction (SAED) pattern of the twin was indexed by transforming matrix of hexagon crystal twin plan.

并采用六方晶系孪晶面的变换矩阵对孪晶电子衍射花样进行了标定。

Optical microscopy, XRD, SEM, tem and SAED are used to systemically characterize the morphology and structure of silver nanostructures.

采用光学显微镜、XRD、SEM、TEM、SAED等手段，表征纳米材料的尺寸、形貌、组成和晶体结构。