Only when the machining gap is in specific ranges, the smooth high quality surface can be obtained under ultrasonic polishing.
试验表明，当超声工具头与被加工工件的间隙在一定的范围内，能在超声研磨条件下加工出高质量的超光滑表面。
Standard maintenance-free roll-disc rotary device, turning a smooth, high precision, to adapt to harsh working environment.
标配免维护滚盘式回转装置，回转平稳精度高，适应恶劣工作环境。
Standard maintenance-free roll-disc rotary device, turning a smooth, high precision, to adapt to harsh working environment.
标配免维护滚盘式回转装置，回转平稳精度高，适应恶劣工作环境。
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