So it is of instructive significance for the protection of buildings and building design in stoped-out area.

对研究采空区已有建筑物的保护，以及采空区新建建筑物的设计具有指导意义。

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So it is of instructive significance for the protection of buildings and building design in stoped-out area.

对研究采空区已有建筑物的保护，以及采空区新建建筑物的设计具有指导意义。

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