The fact that the concentration of the stock holding substantially correlates the fluctuation of the stock price proves that bankers do exist and take control of the price in behind . given the existence of many illegal bankers , the market transactions are actually lack of liquidity in consideration of the stock exchange ratio and the price fluctuation . in additional , the volatility of the chinese stock market has ranked top lines in world major securities market 由于股票的集中度与股价的变动相关性很强，说明市场上确实可能存在较多庄家操纵股价的情况；正是这些非法庄家的大量存在，使得表面看似活跃的市场交易在考虑到换手率和股价波动的综合因素后其实缺乏流动性；而中国股市的波动性十年来更是位居世界主要证券市场的前列。
The numerical simulation indicate that it promote permafrost growth and accelerate the course of recover frozen greatly after fluting via natural convection dropping temperature effect , the top line of permafrost rises greatly , consequently enhance pile bearing capability and so do the capability for resisting frost heaving and thaw settlement 数值仿真分析的结果表明，桩身刻槽后，利用多孔介质自然对流降温效应，促进了冻土的发育，使桩的回冻时间大为缩短；冻土上限大幅度抬升，从而使得桩的承载力提高，抗冻胀融沉性能提高。
