This classification is not arbitrary like the grouping of the stars in constellations.
这种分类并不象把星座里的星体分成各群那样地随意。
In this paper, a complete classical and potential symmetry classification is obtained for a linear wave equation containing an arbitrary function.
先给出了含有一个任意函数的线性波动方程的古典和势对称的完全分类。
The artificial neural network has the character of express arbitrary nonlinear mapping, thus, it works very well in operating classification and learning, and its tolerant errors as well.
人工神经网络具有表达任意非线性映射的特性，从而在分类、学习和容错方面表现了较好的能力。
This classification is evidently not arbitrary like the grouping of the stars in constellations.
这种分类显然不像用星座对星体进行分类那样随意。
This classification is evidently not arbitrary like the grouping of the stars in constellations.
这种分类显然不像用星座对星体进行分类那样随意。
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