由于该巷道地质构造特殊，以6度斜坡向上开拓到800米后，还需继续向前平直开拓一段平巷，这就给提升造成很大困难。
As the geological structure of the roadway special, up to 6 degree slopes to open up to 800 meters, must continue to move straight to open up a Lane, which is very difficult to upgrade.
据亚利桑那大学介绍，“这架照相机机不是直接向下拍摄，而是向东转了22度，这样我们能更好地看到火山口的斜坡，“和从飞机窗口向外看差不多”。
The camera isn't looking straight down, but is pointed 22 degrees east so we get a better view of the crater's slopes, " comparable to a view from an airplane window," the university says.
校舍都是水泥地面，上面铺着油毡，里面没有楼梯，取而代之，每一层都有两个斜坡，便于轮床上下，两个斜坡互成180度的角。
The floors were all concrete linoleum and instead of stairs in the building there were two gurney ramps per floor, at 180 degree angles from each other that traversed you through the levels.
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