The slope on either side was extremely steep and forbidding, and yet I thought that I could work my way down on either side.
两边的山坡极其陡峭，极其险峻，然而我觉得从哪边都可以爬下去。
Construction technique of concrete lining of long inclined shaft with steep obliquity Angle and large diameter is complex and extremely difficult.
陡倾角大直径长斜井混凝土衬砌施工技术复杂，施工难度大。
Construction technique of concrete lining of long inclined shaft with steep obliquity Angle and large diameter is complex and extremely difficult.
陡倾角大直径长斜井混凝土衬砌施工技术复杂，施工难度大。
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