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According to practical experience and study for many years, hot condensation liquid of backset current invite within 2.5-3 hours drawing former solvent of pot all change once, can keep a higher density to the draw pot crude drugs in unit time.

回流的热冷凝液约在2.5-3小时内将提取罐原溶剂全部更换一次,使提取罐内中药材组成中溶质浸出液中的溶质在单位时间能保持一个较高的浓度差,既继承了传统提取罐二次提法的工艺,又节省了50%溶剂投放量。

This basic research is armed to find out and to predict SCF particularity, which are very important for the SCF application. Firstly the densities of the binary mixtures of CO2—methanol, CO2—ethanol, CO2—n— butyraldehyde and CO2—i—butyraldehyde were measured from 313.5K to 323.5K under the pressure range from 7 to 14MPa.

本文首先在313.5~323.5K、7~14MPa范围内测定了CO2及CO2—甲醇、CO2—乙醇、CO2—正丁醛、CO2—异丁醛二元混合流体的表观密度,讨论了压力、第2组分的种类和加入量对CO2表观密度的影响,在此基础上计算了溶质的偏摩尔体积,讨论了温度、压力和第2组分的性质对溶质偏摩尔体积的影响规律。

The results show that there is excellent linear relationship between solute-related parameters and retention indexes for the saturated hydrocarbon, olefine and diene compounds on different polar chromatographic stationary phases.

结果表明:烷烃、烯烃、二烯烃类化合物在不同极性的色谱柱上的色谱保留与其分子结构描述参数之间具有较好的线性关系,烃类化合物在不同极性固定相上的保留主要与溶质分子的MR有关,即与溶质分子的色散力有关。

The number of moles of a solute in a litre of solution is its molarity; the number of moles of solute in 1,000 g of solvent is its molality.

1升溶液中溶质的莫耳数是它的体积克分子浓度;1,000克溶液中溶质的莫耳数是它的重量克分子浓度。

The number of mole s of a solute in a litre of solution is its molarity; the number of mole s of solute in 1,000 g of solvent is its molality.

1升溶液中溶质的莫耳数是它的体积克分子浓度;1,000克溶液中溶质的莫耳数是它的重量克分子浓度。

The results show that the retention time of solute in HPLC is controlled by the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges LUMO and the interaction between solution and solute.

结果表明溶质在反相C18柱上的保留值由分子半径或体积、分子的偶极矩、分子的静电力及溶质与流动相分子相互作用力决定。

The diluent solution of glyoxylic acid and oxalic acid was used as the separation object.TOA (in n-octanol) was used as the solvent. The extraction characteristics of single acid and two-acid solution were studied,and the influence of pH and the concentration of complexing agent on the distribution coefficients were measured. The suitable mathematic models were proposed to describe the relationship between TOA and carboxylic acid based on assumed extraction reaction in organic phase.

摘 要:以草酸和乙醛酸的稀溶液为分离对象,采用三辛胺为萃取反应剂、正辛醇为稀释剂,研究了单溶质、双溶质有机酸的萃取分离特性,测定了溶液pH值、萃取反应剂的浓度等因素对双溶质有机酸萃取的影响,提出了萃取的化学反应发生在有机相中的假定,建立了TOA萃取草酸的数学模型。

The diluent solution of glyoxylic acid and oxalic acid was used as the separation object. TOA (in n-octanol) was used as the solvent. The extraction characteristics of single acid and two-acid solution were studied, and the influence of pH arid the concentration of complexing agent on the distribution coefficients were measured. The suitable mathematic models were proposed to describe the relationship between TOA and carboxylic acid based on assumed extraction reaction in organic phase.

以草酸和乙醛酸的稀溶液为分离对象,采用三辛胺为萃取反应剂、正辛醇为稀释剂,研究了单溶质、双溶质有机酸的萃取分离特性,测定了溶液pH值、萃取反应剂的浓度等因素对双溶质有机酸萃取的影响,提出了萃取的化学反应发生在有机相中的假定,建立了TOA萃取草酸的数学模型。

An alternative term used for kosmotrope is 'compensatory solute' as they have been found to compensate for the deleterious effects of high salt contents (which destroy the natural hydrogen bonded network of water) in osmotically stressed cells, but again behavior as a kosmotrope in one system does not mean that a solute may behave as a 'compensatory solute' in another or even that it will stabilize the structuring of water in a third.

另类术语,用以kosmotrope是'补偿性溶质',因为他们已经发现,以弥补因有害影响。高盐含量(破坏自然的氢键网络的水),在osmotically强调细胞但同样的行为作为kosmotrope在一个系统并不意味着溶质可能像一个'补偿性溶质的另一个甚至认为它会稳定的结构水的三分之一。

The partial correlation between the aril and the peel reached significant level .The growth curves of longan fruit and its tissues,demonstrated by eithe...

龙眼果实及各组织的水分进入均早于溶质的进入,假种皮的生长落后于果皮和种子的生长,溶质进入果皮和种子先于假种皮,花后70d开始,溶质主要进入假种皮。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。