So when you're done surveying, you take all this data and you punch it into a computer and you find someone that can draw really well, and you have them draft up a map that looks something like this, and it'll show you both a bird's-eye view of the passage kind of like an ant farm view.
当你做完这些勘测， 你把这些数据都放进电脑里。 找画画很好的人， 让他们画逼真的地图。 看起来就像这样 它展示给你鸟瞰图 和像蚂蚁农场一般的剖面图。