打磨机 meaning in Chinese

polisher
rougher

General technical specification of rail grinding machine
钢轨打磨机通用技术条件
Cracker jack grinding wheel dresser
精密磨轮打磨机
Band type sand papering machine
带式砂纸打磨机
Description : production pneumatic tools , grinding machines and other tools
简介：生产气动工具、打磨机及其他各种工具。
Research of belt grinder on compound material cold continuous rolling production line
冷连轧复合材料生产线上打磨机的研究

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