In most of the recent textbook of physical optics, the rotation of polarised light in certain crystals was explained by Fresnel's principle. however, most of these are not perfect in Chinese' version.

关于晶体旋光性原理，一般采用菲涅尔假说予以解释。但在各种中文物理光学书中，解释均有不能令人满意之处。

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This version features rotation, automatic formatting, and easier access to symbols.

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