R.A.T. the Rock Abrasion Tool wich is a diamond-tip grinding tool that we can use to grind into the interior of a rock, and so we can actually get a window inside the rock.

R.A.T.(岩石磨具)是一个钻石磨头的工具，我们能够用来打孔进入岩石内部，所以我们实际上把它作为进入岩石的窗口。