ab switch
ab开关
以上为机器翻译结果，长、整句建议使用 人工翻译 。
AB method is much advanced in monitoring the thickness. Through the switch of monitoring glass and appropriate choice of wave length, stop point of each layer was located in sensitive position.
AB法是一种比较先进的监控方法，通过变换监控片和移动监控波长，把每层膜的镀制停点选择在灵敏位置。
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