和平演变

Firstly, Egypt which was pro-Soviet before the October War turns to pro-America after the War. Secondly, Egypt and Israel which broke out four wars make peace in 1979. Thirdly, the Egypt-Arabs relations transit from cooperation to separation, then to unity. These different relations have their own law.

本文认为，本时期埃及对外关系有三个重大转变：、埃及由亲苏联转向亲美国，埃美关系全面发展、埃及与以色列由战争走向和平、埃及与阿拉伯关系经历由合作到分裂再到团结的演变。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。