roughness factor meaning in English
糙率因数
粗糙度系数
粗糙度因数
粗糙系数
粗糙因数
粗糙因素
粗度因子
相对粗糙度
Examples
- Since rail is not longitudinal horizontal smooth , there exists various roughness factor , besides , the wheel has eccentric active force , so the vibration caused by subway train has random property . that means it can not be described with a simple defined function
由于钢轨本身纵向并不是完全水平的,而是存在着各种不平顺,加之车轮存在着偏心作用力,使得地铁列车运行过程中所产生的振动具有随机特性,不能用简单的确定性的函数关系来描述振动的特性。 - In this paper , we study the most serious damming section of the east - one main canal , which is from the entrance of the hao wan flume ( chainage12 + 123 . 6 ) to the exit of shang tian yuan tunnel ( chainage24 + 091 . 1 ) . the main content is analyzing the flow characteristic of the canal , setting up mathematical model of the discharge condition of the east - one main canal , according to the survey section and actual roughness factors , building , bend and so on , we divided the canal into more than loocaculation segments . each segment is calculated by microsoft excel electrical table through computer as permanent transition flow of non - prismatic channel
本论文研究的渠段为陆浑灌区东一干渠壅水最为严重的渠段，从郝湾渡槽进口(桩号12 + 123 . 6 )至上天院隧洞出口(桩号24 + 091 . 1 ) ，其主要内容是，分析渠道水流特征，建立东一干渠输水状况的数学模型，根据测量断面及实际糙率、建筑物、弯道等因素的不同，将渠道划分成120多个计算段，每段按非棱柱体恒定渐变流，运用microsoftexcel电子表格进行编程计算。