清咖啡

Ccile Perez, owner of La Fronde, a typical Parisian neighborhood caf said:"In the morning, street cleaners in bright green uniforms sip coffee next to well-dressed businessmen; at lunch hour, working-class types rub shoulders with those of the latest fashion at the bar, while couples of all ages rub noses over salads; during the after-work rush, there is a steady soundtrack of clinking glasses combined with conversation; the constant, no matter what time of day, is the smoke that drifts through the air in curls and clouds, seemingly unnoticed."

佩雷斯是La Fronde，一个典型的巴黎附近咖啡馆的老板，他表示：&穿着明亮的绿色制服的清道工人早晨会来喝咖啡而旁边则可能坐着衣冠楚楚的商人；在午餐时间，工薪阶层会在酒吧与身着最新时装的潮人比肩而座；与此同时各年龄层的夫妇会边吃沙拉边擦鼻子；在下班后的酒吧高峰期间，酒吧内总是说话声夹杂着杯盘的叮当声。一天中无论何时，唯一不变的是人们抽烟吐出的阵阵烟圈，形成烟雾、向空中排放着，似乎被忽视了。&

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。