尾状物

Its shell is divided into two parts. Its cranium is like a half helmet. There are things like the eyes in the front of its shell, 6 pairs of airholes and hard teeth of double layers in two sides of its back. There are the thin, sharp and hard thorns on its shell. Its tail is triangular, which can move about.

其壳分为两部分，头盖形似半只钢盔，壳背前端有眼状物，两侧对称分布气孔6对；背甲布细尖硬刺，边有双层细长硬齿；尾呈三棱形整体，根部可动。

Microscopic scales covering the wings absorb ultraviolet light and then re-emit it.

研究人员发现，非洲燕尾蝶的翅膀上覆盖着细微的鳞状物，这些鳞状微结构吸收紫外线后，又将其重新发射回去。

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。