The principles and construction of the device are described. The device is actually an improved type of colour comparison cuvette.
本装置是一种改进型的比色池，可作为荧光计的标准配件。
If colour is accurate, and the choice of the color of proper proportion, can be used to make comparison of pure black or grey.
如果色料选择得比较准确，而且各种颜色的比例得当的话，就能调制出比较纯正的灰色或黑色。
If colour is accurate, and the choice of the color of proper proportion, can be used to make comparison of pure black or grey.
如果色料选择得比较准确，而且各种颜色的比例得当的话，就能调制出比较纯正的灰色或黑色。
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