Just cut a small cross in the plastic at the spot you will drill.
先在塑料板上要钻孔的地方切一个小十字。
The reporting examples include simple tabular reports, two styles of hierarchical drill-down reports, cross tabs, and several GDI + charts.
这些报表示例包括简单的表格报表、两种样式的分层深入报表、交叉表和几个GDI +图表。
The present technique is a new thin cutoff wall construction method by modifying the original method as to use flat drill bit instead of cross bit and adopt positive and negative circulating system.
冲切成槽薄壁混凝土防渗墙施工技术是在原冲击成槽建造防渗墙的基础上，对冲击钻头和施工工艺加以改进，用扁钻头代替十字钻头，用正反两种循环系统进行泥浆循环的一种新防渗墙施工方法。
Drill cross section profile (DCSP) is a characteristic parameter of drill helix flute form.
横向截形是麻花钻螺旋面容屑槽的一个特征参数。
Drill cross section profile (DCSP) is a characteristic parameter of drill helix flute form.
横向截形是麻花钻螺旋面容屑槽的一个特征参数。
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