结果：全部病人都在较短的时间内获得坚强的融合，除2例病人外，其余患侧膝关节功能基本恢复正常。

Results: all patients got solid arthrodesis within a short time. And all except 2 had restored almost normal unilateral knee joint function.

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覆盖问题不仅决定着一个无线传感器网络能否正常有效地工作，而且在很大程度上决定了网络的性能、生存时间等，是无线传感器网络的一个基本问题。

Coverage issue not only decides whether a WSN can work effectively or not, but also comes to a decision on function, existence time of the network to a large extent, which is a basic issue in the WSN.

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整个替换过程基本无需技术改造现有制冷系统，也没有影响超市的正常运作，节省不少宝贵时间和金钱。

Requiring essentially no technical modifications to the supermarket's existing refrigeration systems, the retrofit took place without interrupting business, saving both precious time and money.

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