This paper introduces an infinitesimal exceptional family of elements by means of an exceptional family of elements. By using inversion operation, duals of these exceptional families are obtained.

利用元素例外族引申出无穷小元素例外族，并通过反演运算，得到了两个例外族的对偶。

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This paper introduces an infinitesimal exceptional family of elements by means of an exceptional family of elements. By using inversion operation, duals of these exceptional families are obtained.

利用元素例外族引申出无穷小元素例外族，并通过反演运算，得到了两个例外族的对偶。

youdao