硫酸化

The effects of the sodium bisulfate dosage, reaction temperature, water content, methanol flow rate on the conversion rate of waste oils were investigated.

考察了硫酸氢钠用量、反应温度、反应体系含水量、甲醇流量等对酯化反应转化率的影响。

The research aimed to study the esterification of waste oils catalyzed by sodium bisulfate and provide references for the production of biodiesel by solid acid catalyzed wasted oils.

［目的］研究硫酸氢钠对废油脂酯化催化作用，为固体酸催化废油脂生产生物柴油的研究提供参考。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。