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。
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。
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。
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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