Portabletester of braking performance is developed for solving the inspection issue of dynamic test on the road.
为解决机动车动态路试的检测问题，研制了一种便携式制动性能测试仪。
2
The portable surface roughness tester carries out accurate measurement of product surface roughness at workshop or calibration department.
便携式表面粗糙度测量仪成功地实现了在生产车间和计量部门对工件的表面粗糙度的精确测量。
3
This paper describes the design of a portable draft pressure tester and analyses its architecture and the working principle of its main module, and also discusses its accuracy.