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以“JJK激光自动刻槽机”的控制和监测系统为实例，扼要描述光点物面位移法刻槽电阻如何实现动态阻值精度测量和控制。
Taking the control and monitoring system of “JJK Laser Automatic Grooving Machine” as an example, this paper briefly describes how to realize the measurement and control of dynamic resistance accuracy by using the surface displacement method of light spot.