内壕

Pottery sherds excavated from the eastern moat were from Longshan Period. Area of the huge moat was very close to the Longshan cultural layer and bigger than the settlements from other periods. Thus, one can see that the moat has been used and constructed during the Longshan period. The moat was filled and abandoned during the Elitou period.

东壕沟沟内主体堆积所出陶片皆属龙山时期，而且大型环壕的范围与该遗址龙山时期地表遗存的分布范围最接近，而远大於其他各时期聚落的范围，由此可断定环壕当在龙山期修建和使用，到二里头期以后被填满、废弃。

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。