You can also perform operations such as filtering, using WHERE conditions, ORDER BY, GROUP BY, and other operations that would be possible with a regular base table.

还可以通过使用 WHERE 条件、ORDER BY、GROUP BY 子句执行过滤操作，或者执行常规基表适用的其他操作。

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MAC address filtering and base station discovery policies that prevent the deployment of unauthorized access points and other wireless devices can be enforced at the final layer.

而在最后一层则可执行那些用来防止未经授权的访问点以及其它无线设备配置的MAC地址过滤和基站发现策略。

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In this paper we mainly study the base stability analysis of GPS deformation monitoring and suppressing the surveying data noise by adaptive Kalman filtering.

本文主要研究GPS变形监测的基准稳定性分析及利用自适应卡尔曼滤波进行变形监测数据除噪。

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