求翻译：但过多的环烷酸钠会使混合脂肪酸钠在SiO2吸附量减小。综合考虑适宜环烷酸钠比例为60%，此时的接触角最大，最适合选矿。是什么意思？

But too much fat, sodium naphthenate mixed sodium lead adsorption capacity decreases in SiO2. Considering the appropriate ratio of 60% sodium naphthenate, the maximum contact angle at this time, the most suitable dressing.

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But the excessively many naphthenic acid sodium can cause the mix fatty acid sodium to reduce in the SiO2 adsorptive capacity.The overall evaluation being suitable naphthenic acid sodium proportion is 60%, this time angle of contact is biggest, most suits the dressing.

But an excess of sodium naphthenate makes sodium fatty acid adsorption on the SiO2 content decreases. Naphthenic acid sodium comprehensive consideration of appropriate scale of 60%, in which case the maximum contact angle, and the most appropriate dressing.

But sour sodium of too much cycloalkanes will compound fatty acid sodium to reduce in SiO2 absorbing amount. It is 60% to consider the sour sodium proportion of suitable cycloalkanes synthetically, the contact angle at this moment is the largest, most suitable for the ore dressing.