Nowadays there are many methods to observe the magnetic domain structure, including powder-pattern method, magneto-optical effect method and electron holography method, etc.
目前，磁畴观测的方法已有很多种，如粉纹图法、磁光效应法、电子全息法等。
A new crystal structure of Nateglinide called s - out was found and determined by X - ray powder diffraction method. The pattern, data and the crystal size were given.
用X射线衍射相分析法发现并确定降血糖新药那格列奈另一种新的晶型结构，我们称之为s型。
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