You are also expected to manually set up several configuration files but if this is your first build you can safely use the defaults in the Arch Linux wiki entry mentioned in the step-by-step guide.
如果你也想手动设置一下文件，但是如果这是你第一次搭建Linux，你可以放心的使用Arch Linux wiki一步步的条目说明。
The effect method of reinforce and maintenance the stone arch bridge is to build liner around the arch bridge down area. That combines the old arch round and the new reinforced concrete together.
在石拱桥拱圈的下部进行衬砌加固，使老石拱桥拱圈与新钢筋混凝土套拱形成整体，共同受力，是一种维修加固石拱桥的简单实用的方法。
For the arch dam which reservoir has no suitable breach to build lasher and has mass flood discharge, opening large orifice for flood discharge has great advantage.
对于库区无适宜垭口可兴建泄洪道，而泄洪量又较大的拱坝工程，在坝身中开设大孔口泄洪具有显著的优越性。
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