If Lemma 16 is the only place where B is used, and Lemma 15 is the only place where B is verified, then it can be better to unify these two lemmas as
如果引理16是B唯一被使用到的地方，而且引理15是B唯一被检验的地方，那么最好就把两个引理合在一起变成
In this paper, we give a useful lemma, then applying this lemma we get some theorems on the strong law for the mixing sequence, which improve the previous results.
我们在文中给出了一个有用的引理，借助于该引理得到了混合序列的强大数律，所得结果改进了以前的结论。
The lemma of query equivalent and lemma of limited steps was proved and the complexity of information query algorithm in different conditions was discussed.
证明了关于查询等价和有限步数引理，讨论了不同条件下信息检索算法的复杂度，并在试验中验证了信息动态路由算法的可行性和高效率。
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