匹配规律表达式简单明确，但实用范围却很有限。
The expression of the matching law is simple and clear, but there are some limits in its applications.
本文从理论上推导出最佳使用范围，并给出合理的实用范围。
The optimum reading range is then derived theoretically in this paper, and its reasonable scope of application is given.
从而，进一步深化和推广了首尾排序算法的应用方式与实用范围；
Therefore, the application forms and applied ranges of algorithms for sorting from head and rear were deepened and expended.
应用推荐