环骨瘤

Results:The lesion of cholesteatoma (8/17) appeared as mass shadows in tympanic sinusand and cavity with low denisty ring around, accompanied with obvious ossicles chain destruction.

结果：胆脂瘤8例表现为中耳腔内团块状影，周围低密度环包绕，听骨明显破坏及中耳窦腔扩大，骨缘硬化。4例肉芽肿多呈片状、条索状或网状，听骨破坏较轻。

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。