钉牢

A thin piece of wire in the shape of a square bracket that is driven by a device through sheets of paper or similar material and flattened to serve as a fastening.

钉书钉：用装置压进方括号形状的细金属丝，以穿过纸张或类似材料，并可作为系牢物以压平v.tr。

A thin wire nail with a small head or a slight side projection instead of a head.

用来支持扣牢或贴上某物的小的细的木制或金属制的钉。

But the wire in the nail color fastness, easy-to-secable, the use of time is low for a long time, cover and text for the middle of the page.

但铁丝钉易生锈，牢度低，使用时间较久后，封面和内文中间页容易脱落。

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。