零值方法

Third, mensurated the front axles load-time history when truck was running on general tar-paved roads, mountainous roads and the proving ground enhancement roads, second sampled and pretreated to the load-time history with RPCⅢ software of MTS corporation, acquired the relationship of the frequence of the mean and amplitude load, obtained the zero mean equivalent loads using Goodman experiential fatigue equation, acquired the Weibull distributing functions of equivalent loads of respective roads.

第三，测定了汽车前桥在一般沥青公路、山区公路和试验场强化试验路面的载荷时间历程。对载荷时间历程进行了二次采样和数据预处理。采用雨流计数法得到了各路面的载荷均、幅值的频次关系，并根据Goodman经验疲劳公式，得到了零均值的等效载荷及相应的频次。利用数理统计的方法得到了各路面的等效载荷的Weibull分布函数。

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。