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机器和仪表零件的磨削通常为两个工序：不同特性砂轮（较大和较小颗粒）的粗磨和终磨。当然，把这两个工序结合在一起是工程技术人员的努力目标，于是研制出组合式砂轮并应用于生产中。这种砂轮包括一个可多次使用的金属壳体，其上紧固可以作径向位移的粗磨和终磨元件，采用这?
Grinding machine and instrumentation components is usually two processes: roughing and final grinding of wheels of different characteristics (larger and smaller particles). Of course, the combination of these two processes is the goal of engineering and technical personnel, so developed a combination of grinding wheel and applied to the production. This wheel consists of a reusable metal housing that is fastened to rough and final grinding elements for radial displacement.