在无线传感器网络环境中，用户经常提交空间范围查询以获取网络某局部区域的统计信息，如最大温度、平均湿度等。
In wireless sensor networks, the users often submit spatial window queries to obtain the summary information of a local area in the network such as maximum temperature, average humidity, et al.
在无线传感器网络环境中，用户经常提交空间范围查询以获取网络某局部区域的统计信息，如最大温度、平均湿度等。
In wireless sensor networks, the users often submit spatial window queries to obtain the summary information of a local area in the network such as maximum temperature, average humidity, et al.
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