SEM theory

Scanning Electron Microscope(扫描电子显微镜)

The SEM is a microscope that uses electrons rather than light to form an image. There are many advantages to using the SEM instead of a light microscope.(SEM是使用电子而不是光形成图像的显微镜。 使用SEM代替光学显微镜有很多优点。)

A Brief Introduction(一个简要的介绍)

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