This paper discuss the locally topological structure of higher order singular point for the plane cubic system in the first critical case and give a criterion by the coefficients of polynomials.

讨论了第一临界情形下的平面三次系统高次奇点的局部拓朴结构，并给出利用多项式系数的判断准则。

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A method of calculating crystal plane spacing in centered cubic structure is proposed, and several examples are given to verify the validity of this method.

提出了一种计算有心立方结构面间距的方法，并给出了几个简单算例。

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This relationship between them is characterized by the quality of being cubic, dynamic, multidimensional and richly colourful, rather than of being plane, static and linear.

二者间的关系不是平面、静态和线性的，而是立体、动态、多维和丰富多彩的。

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