好的我开始了，点A距离这个平面,高度差，现在运用,机械能守恒定理。
Okay, I start off, point A is at a distance h h above this level, and so I apply now the conservation of mechanical energy.
5倍于半径的高度，机械能守恒定理，告诉我们照着书，要经过这点的最小值。
5 times the radius, conservation of mechanical energy tells you that that is the minimum it takes to just go through that point.
通过对极限分析法主要定理的介绍 ，针对公路边坡失稳的两种主要情况 ，详细地推导出了公路边坡临界高度的计算公式 。
Through the introduction of main limit analysis theorem, this paper deduces the calculating equation of highway slope critical height in accordance with the two main stability failure.
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