查询词典 acid-base

The results of technological experiment show that sulfuric acid/2-naphthalenesul phonic acid/ sulfurous acid can be efficiently separated with three adsorption towers in series, and the resin has a better reproducibility.

在此基础上进行了工艺实验研究，结果表明采用三塔串联可有效实现硫酸-2-萘磺酸-亚硫酸的分离，且树脂具有较好的重复性。

It was found that sulfuric acid, 2-naphthalenesulphonic acid and sulfurous acid could be effectively separated by competitive exchange adsorption in views of action force difference of the components with the resin. The exchange adsorption dynamic diffusion parameters were calculated with diffusion equation for solids and liquid films, and the rate-determining step was determined. The model of breakthrough curve for the resin bed was suggested, and applied to simulate the breakthrough process for each component.

通过单组分、双组分和多组分平衡数据的测定，发现对于硫酸-萘磺酸-亚硫酸混合体系，可以利用不同组分与树脂作用能的不同，通过竞争交换吸附实现分离；以固相扩散方程和液膜扩散方程对交换吸附动力学参数进行了估算，确定了交换吸附过程的控制步骤；建立了床层穿透曲线模型，并对各组分穿透过程进行了模拟。

Now they possess twenty more series of product including glycyrrhizic acid, ammonium salt, sylvite, sodium salt, glycyrrhetinic acid, derivatives of the glycyrrhetinic acid etc. which are chiefly applied to the pharmaceuticals, food, cosmetic and tobacco industry as material, intermediate, synergistic agent and additive.

现拥有以甘草酸及铵盐、钾盐、钠盐，以及甘草次酸和甘草次酸的各种衍生物等二十多种系列产品，主要用于医药、食品、化妆品、烟草等行业的原料、中间体、增效剂和添加剂。

Tartaric acid: Naturally occurring acid found in grapes and the most important acid in wine.

酒石酸：在葡萄中发现的自然形成的酸，也是葡萄酒中最重要的酸。

At the same time, the optimum proportions of formula of beverage were determined through orthogonal test: 2.0 gL^(-1) of the mixed acid with citric acid/malic acid ratio of 1: 1, 8.0% of sugar degree, 0.01% of yellow peach flavor, and 0.004 gkg^(-1) of tartrazine.

饮料最优配方为：2.0gL^(-1)的混合酸（苹果酸：柠檬酸＝1：1）、8.0%浓度的蔗糖、0.01%的黄桃香精和0.004gkg^(-1)的柠檬黄色素为最佳配比。

This product is a natural vitamin E, vitamin C,β-cyclodextrin, mannitol, lactose, povidone K30, citric acid, tartrazine, butyric acid butyl ester, stearic acid, magnesium as the main raw material of health food products , with added vitamin E, vitamin C, health care function.

本品是以天然维生素E，维生素C，β-环糊精，甘露醇，乳糖，聚维酮K30，柠檬酸，柠檬黄，丁酸丁脂，硬脂酸镁为主要原料制成的保健食品，具有补充维生素E ，维生素C 的保健功能。

Main ingredients】 natural vitamin E, vitamin C,β-cyclodextrin, mannitol, lactose, povidone K30, citric acid, tartrazine, butyric acid butyl ester, stearic acid, magnesium

天然维生素E，维生素C，β-环糊精，甘露醇，乳糖，聚维酮K30，柠檬酸，柠檬黄，丁酸丁脂，硬脂酸镁

Virus hasn't cell construction. A lot of simple virus is only made of nucleus acid and protein tegument, so we can regard it as nucleoprotein. A type of virus pill usual has a kind of nucleus acid. After virus infect sensitive host cell, the nucleus acid of virus will enter cell and produce its descendant and new protein by reproduction and expression. Then, the new synthetic virus is made up of descendant that release form cell by regular way. This specific way of reproduction of virus called reproduction.

病毒不具有细胞结构，一些简单的病毒又由核酸和蛋白质构成，故可把它们视为核酸蛋白分子，一种病毒的毒粒内通常只含有一种核酸，病毒感染敏感宿主细胞后，病毒核酸进入细胞，通过其复制与表达产生子代病毒基因组和新的蛋白质，然后由这些新合成的病毒组分装配成子代毒粒，并以一定的方式释放到细胞外，病毒的这种特殊繁殖方式称为复制。

The relations between the gene mutation of the retinoic acid acceptor, various retinoic acid acceptors and their ligands and teratogenesis of retinoic acid are summarized in this article.

对视黄类受体基因突变和不同视黄类受体及其配体与致畸作用的关系，以及此类受体对其它基因表达的调节作简要综述。

Esterification of terpineol with oxalic acid, chloroacetic acid and trichloroacetic acid by solid superacid MoO3/TiO2 was studied.

研究了MoO3/TiO2固体超强酸催化剂催化松节油与草酸，氯乙酸，三氯乙酸反应的规律。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。