运用力学和运动学方法推导得到了余留支撑体所对应的最小保留角和爆破切口高度计算公式。
The calculating formulae of minimum Angle corresponding to the remained wall and blasting cutting height are deduced on the basis of principle of mechanics and dynamics.
国家通货膨胀认为，美国有一大学教育泡沫，开始在2011年年中爆破。
The National Inflation Association believes that the United States has a college education bubble that is set to burst beginning in mid-2011.
国家通货膨胀认为，美国有一大学教育泡沫，开始在2011年年中爆破。
The National Inflation Association believes that the United States has a college education bubble that is set to burst beginning in mid-2011.
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