制动缸推杆

This paper introduces classification and feature of 305×254 spinning and sealing brake cylinder,analysis of stamping piston and recovery rod ,simple discuss test of researching process.

介绍了305×254旋压密封式制动缸的分类和特点，对冲压活塞和推杆回复装置进行了分析，并对研制过程中的试验进行了简要论述。

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。