The detection and location of the start point and end point of the voltage sag and swell is a key problem for the power quality monitoring.
对于短时低电压扰动发生、恢复时刻的检测与定位则是电能质量监测和统计中获取相关指标首先要解决的问题。
The polishing method using this abrasive pad employs an optical end-point detection device.
使用该研磨垫的抛光方法采用光学终点探测装置。
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