The reduction of the state - owned shares , which is one of the most sophisticated problems left in the development of the capital market , has been the focus of the whole society ever since it was first put forward , and is the central issue and hard nut of the recent economic reform 国有股减持作为我国资本市场发展过程中所遗留下来的几个最复杂、最难解决的问题之一，自提出之日就一直为社会各界所关注，也是近年来改革的热点、难点。
Also , the reciprocity of creep between dam base and body , and stress - seepage field couple between dam and its base are something intricateo anciently , study on dam body is rather abundant , but quite few on dam base . aiming these hot and difficult spots in dam building , combining one of the great projects sponsored by national natural science fund ( no . 50139030 ) , and real projects analysis of xin ' anjiang dam and longyangxia dam , this dissertation studied these complex problems mentioned hereinbefore 大坝是一个包括坝体和坝基的复杂系统，不仅坝基与坝体结构与荷载之间有复杂的相互作用，由于自身材料的特点，坝基蠕变与坝体徐变之间也有复杂的相互影响；而坝基应力场与渗流场、坝体应力场与渗流场的相互作用也是一个十分难解决的问题。
