A refraction analysis method is used to determine spinning oil concentration.

利用折光率快速测定纺丝油剂浓度.

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Because of its ultra - fine crystal structure and high refractive index, it make color more abundance satiation.

微细晶体结构特性和高折光率, 使色彩更显丰富饱满.

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A method for recovery of mixed solvent by measuring index is reported in this paper.

报道了一种通过测试折光率来回收混合溶剂的方法.

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Determination of high - content Ammonia Chloride in the rare - earth wastewater conductometric and refractometric analysis is described.

阐述了折光率法与电导率法测定稀土废水中高浓度氯化铵的原理和方法.

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