表面粗糙度测量
Surface roughness measurement
表面粗糙度测量计
surface roughness measuring gauge
表面粗糙度测量仪
surface roughness measuring instrument
surface finish measuring instrument
surface roughness tester
粗糙度测量仪器
contact stylus instrument for measurement surface
温度粗糙度
thermodynamically roughness length
冲击速度测定器
impact-pressure velocity meter
电子根管长度测定器
electronically determined length