A green phosphor display is generally used as the human eye is most sensitive to the color green in this wave length, which falls in the middle of the visible light spectrum.
一般使用黄磷绿色显示，因为肉眼对黄磷绿色这种波长最敏感，这种波长位于可见光光谱中间。
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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