Generally speaking, there are few profound discussion and research on the partition and covering of finite set.

关于有限集合上的划分与覆盖，一般很少讨论和研究。

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In this paper, we discuss some local covering properties of 2 X with locally finite topology, and prove that some covering properties are equivalent to local properties in 2 X.

本文赋予超空间2 x局部有限拓扑，并讨论此空间的一些局部覆盖性质。证明2 X中的某些覆盖性质等价于局部性质。

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The technique of covering finite elements for problems with movement is presented and a new approach to the dipping bed is given.

提出了有限元网络覆盖技术，用于解决由于测量仪器的运动而产生的一系列问题；给出了一种处理倾斜地层的新方法。

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