大家都搜：
粗糙元素，粗糙微元
1、rougher element───粗糙元件
2、roughness average───平均粗糙度
3、scavenged element───清除元素
4、roughness───n.粗糙（度）；粗暴；猛烈；篷乱毛发；未加工
5、roughness height───粗糙度高；粗糙度值；粗糙度高度，粗糙高度
6、surface roughness───表面粗（糙）度，表面光洁度；[机][气象]表面粗糙度；表面光洁度
7、element───n.元素；要素；原理；成分；自然环境；n.(Element)人名；(德)埃勒门特；(英)埃利门特
8、filter element───过滤芯；滤波元件；滤波（器）元件，滤心; 滤芯
9、roughness tester───粗糙度测试仪
1、In Mechanical Engineering, conducting research on the roughness of surfaces of the machine element also is profoundly practically significant.───在机械工程中，对机械零件加工表面的这种凹凸不平性开展研究同样具有重要的实践意义。
2、wind tunnel test carries out in the turbulent and uniform wind field, spire, fence and roughness element are used for simulating the wind environment of the bridge located site.───试验分别在湍流、均匀流两种风场环境中进行，利用尖塔、挡板、粗糙元等装置模拟了桥址处的风环境。
3、Based on random rail roughness and vehicle-bridge coupling element, a method is proposed for calculating random vibration of long span Bridges under moving vehicles in this paper.───基于随机轨道粗糙度和车桥偶合单元，提出了大跨桥梁移动车辆荷载作用下随机振动的计算模式。