If there is deviation with acceptance criteria, mark and list the DCA code.

如果存在与接受标准的偏离，标记并列出说明偏离的DCA代码。

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This paper introduces successful construction method and control measure currently used for holedrill, borehole deviation, protection tube, and embedment and installation of bimetal mark.

介绍了目前比较成功的倒垂孔钻孔、钻孔偏斜、保护管安装、双金属标的埋设及安装等施工方法和控制措施。

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