用失重法研究了氢氧化钠溶液中氯化十六烷基吡啶在铝表面上的吸附及其缓蚀作用。
The adsorption isotherm of cetane pyridine chloride in sodium hydroxide solution on aluminium surface has been measured by corrosion weight losses and its corrosion inhibition has been investigated.
在污水结垢机理和软化处理研究的基础上，确定了氢氧化钠沉淀法进行水质软化处理的工艺。
On the basis of studying the mechanism of sewage scaling and its softening treatment, the technique for water quality soft process with sodium hydroxide precipitation method is determined.
本文就氧杂蒽醇的制备方法进行了多方面的探讨，选出了较好的合成路线即锌粉加氢氧化钠还原法。
Much research work is done on the synthesis method of xanthgdrol, from which the better synthesis method is zinc powder in addition to sodium hydroxide.
采用纤维素与过量的氯乙烷及氢氧化钠反应，以甲苯为稀释剂，用一步法成功地合成了乙基纤维素。
Ethyl cellulose was synthesized successfully in one-step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.
应用正交设计法，考察氢氧化钠浓度、体积、提取温度、提取时间等因素对甘草黄酮提取率的影响。
Effective factors of extractions rate of flavonoids of glycyrrhiza in the waste residue of glycyrrhiza were studied by orthogonal design in this paper.
采用机械破碎、酸法蒸煮、氢氧化钠溶液碱法蒸煮、氨水处理和蒸汽爆破等五种不同物理和化学方法对剑麻纤维进行处理。
Sisal fibers were pretreated by different technique as acid cooking, alkali cooking, mechanical crushing, ammonia liquor-swelling and steam exposition.
方法采用氧瓶燃烧法，过氧化氢溶液为吸收液，用氢氧化钠滴定。
METHODS Oxygen flasr combustion method was used. Hydrogen peroxide solution was used as the absorption liquid and then was titrated by sodium hydroxide.
本文基于气相中的二氧化碳在稀氢氧化钠-酚酞溶液中的溶解而使酚酞逐渐褪色的动力学行为提出了一种直接测定气相中微量二氧化碳的动力学分析法。
A kinetic method for the direct determination of CO_2 in gaseous phase is proposed, based on fading the phenolphthalein when CO_2 dissolves in dilute aqueous solution of NaOH.
本文基于气相中的二氧化碳在稀氢氧化钠-酚酞溶液中的溶解而使酚酞逐渐褪色的动力学行为提出了一种直接测定气相中微量二氧化碳的动力学分析法。
A kinetic method for the direct determination of CO_2 in gaseous phase is proposed, based on fading the phenolphthalein when CO_2 dissolves in dilute aqueous solution of NaOH.
应用推荐