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。
It can also be seen in Fig. 12.2 that a core drill has flat end.
在图12.2中同样能看到，空心钻具有平坦的端部。
The main concrete cutting tools that are utilized include the wall saw, the flat saw, the core drill, and the wire saw.
混凝土切割工具，主要是利用包括看到墙上，单位锯核心钻、绳锯。
Reinforced back panel for a flat screen TV; no need to drill holes in the wall and cords can be hidden at the back.
加强型背板，可用来安装平面数字电视；无需在墙上钻孔，而且，可将电线隐藏在背面。
This equipment is controlled by the software, automatic finish the milling of the flat milling cutter and drill bit flank by using automated correspondence way of cutter.
该设备是通过软件控制，采用自动对应刀的方式，自动完成平底铣刀，钻头的刃面研磨，可供铣刀生产厂家进行生产，也可用于旧刀修磨。
This equipment is controlled by the software, automatic finish the milling of the flat milling cutter and drill bit flank by using automated correspondence way of cutter.
该设备是通过软件控制，采用自动对应刀的方式，自动完成平底铣刀，钻头的刃面研磨，可供铣刀生产厂家进行生产，也可用于旧刀修磨。
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