查询词典 molar quantities

The influences of the amount of 1,2-diaminoethane, temperature, molar ratio of epichlorohydrin and dimethylamine, and time on the viscosity and cationic degree of polyamine flocculants were investigated.

以环氧氯丙烷和二甲胺为原料，乙二胺为交联剂，制备有机阳离子聚合物，研究乙二胺加入量、反应温度、环氧氯丙烷和二甲胺的摩尔比、聚合时间等对聚合物粘度和阳离子度的影响。

The results show that when molar ratio of epichlorohydrin and dimethylamine is set as 1.5:1 and the amount of 1,2-diaminoethane is 3%, polyamine flocculants get the best viscosity and cationic degree and have excellent decoloration efficiency through the adsorption and subsequent formation of particle-polymer-particle bridges.

结果表明，环氧氯丙烷和二甲胺的摩尔比为1.5：1，乙二胺加入量为3%时，聚合物的粘度和阳离子度最大，具有较强的吸附架桥和电中和作用，对染料废水有较好的脱色效果。

The influences of the amount of triethylenetetramine, temperature, molar ratio of epichlorohydrin and dimethylamine, and reaction time on the viscosity and cationic degree of the polyamine flocculants were investigated. Then the influence of pH value, flo-cculant dosage and temperature on flocculation effect were studied.

研究了三乙烯四胺添加量、反应温度、n∶n、聚合时间等因素对聚合物黏度和阳离子度的影响，并考察了该聚合物用于造纸废水处理时，体系pH值、絮凝剂用量对絮凝效果的影响。

The deoiling effect of the polymerized additives has been evaluated by means of aerated floatation process.The result shows that when dimethylamine,diethylamine or methylamine serves as amine and the molar ratio of ...

利用充气浮选法对所合成的药剂进行了除油效果的评价，结果表明：当胺为二甲胺、二乙胺、甲胺，聚合单体与环氧氯丙烷的摩尔比为1：2时，产品的除油效果最佳。

The reaction conversion and selectivity can be increased effectively by using multi-stage hydrogenation process and controlling H 2/ diolefin s molar ratio.

以该催化剂为基础开发的长链双烯多段选择性加氢工艺，在很宽的温度、压力、空速范围内都可达到很好的结果，严格控制氢气与双烯烃摩尔比，可有效提高反应的转化率和选择

Under the conditions that the molar ratio of dimethyl carbonate to N,N′-diphenyl urea was 10∶1,the amount of catalyst Bu2SnO was 2%,reaction temperature was 160℃,and reaction time was 2 h,the yiel...

在反应物碳酸二甲酯和二苯基脲的摩尔比为10∶1，催化剂Bu2SnO的用量为2%，160℃时，反应2h，MPC的收率达到98%，远高于文献结果(77%)。

The molar ratio of different metal ions within support, the preparation methods of supports and catalysts, and other factors had been studied. The activity of catalyst was evaluated by the synthesis experiments of diphenyl carbonate.

实验考察了载体金属离子的组成和配比、载体和催化剂的制备方法等因素对催化活性的影响，以苯酚氧化羰基化反应合成DPC的实验结果对催化活性进行了评价。

In the presence of PD , the dissolution rates of Cr and Ni in 304 matrix decreased obviously, and the molar percentages by which various components in 304 stainless steel dissolved were different from those in the absence of PD. AAS data indicated that regardless of the presence of PD the dissolution of Fe, Ni and Mn took the form of divalence, while Cr dissolved in the form of trivalence.

PD对304不锈钢在盐酸中的腐蚀存在"选择性抑制"效应，能显著减缓Cr和Ni的溶解，改变各元素溶解的比例，导致耐蚀组分在电极表面富集。

Gradually turned into two feet to walk upright, hand, foot and division of labor, will use stones, sticks and other natural tools; body structure compared with Dryopithecus progress, dental arch into the arch, the teeth arranged more closely, canines are not prominent, molar greater occlusal surface, the dolphin's back back, stands about 1 meter, the brain is about 300 milliliters; mainly eat plants, and carnivorous.

逐渐变为两足直立行走，手足分工，会使用石块、木棒等天然工具；身体结构较森林古猿进步，齿弓成弧形，牙齿排列较紧密，犬齿不突出，臼齿有较大咬合面，吻部向后退缩，身高约1米多，脑量约300毫升；主要以植物为食，兼食肉类。

The results showed that the optimum synthesis conditions of HBPE were as fonows: molar ratio of MPA to ECH 1:1, reaction temperature 90℃.

结果表明，HBPE合成最佳条件：n：n=1：1，反应温度90℃，HBPE与HEA最佳物质的量比为1：2。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。