The structures of films were studied by IR and SEM.

由红外光谱和扫描电镜研究了复合膜的结构。

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The graft copolymer structure was characterized by infrared spectrum and SEM.

用红外光谱和扫描电镜对接枝物结构进行表征；

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The substructure and the fracture process of mullite ceramics were studied by TEM and SEM.

用透射电镜和扫描电镜研究了莫来石陶瓷的亚结构特征和断裂过程。

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and any classes that interest me too. So I'm taking Intro-Sem, Intro Seminar class,

还有其他我感兴趣的课。所以我要选讲座课程，

斯坦福的新生 - SpeakingMax英语口语达人

Since buying a minority interest in SEM in 2005, Cat has been working to upgrade the quality and durability of SEM machines, while sharing its prowess in manufacturing, safety and dealer service.

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