查询词典 separation

This separation of ethanol-water azeotrope using glycol as solvent is analyzed. The result shows that when the system is operated twice,the output is the greatest and the consumption is the least.

以乙二醇作溶剂分离乙醇-水物系的实验结果表明，当间歇操作次数为2时，产品采出率最大，单位产品消耗的新鲜溶剂量最少。

Vacuum volatilization; separation process; azeotrope; diffusion coefficient; evaporation heat

真空挥发；分离过程；共沸物；扩散系数；蒸发热

A new method to separate azeotropic mixtures was proposed in the paper, that is, vacuum volatilization separation process. It is undertaken in vacuum and the temperature must be controlled under the azeotropic point to avoid forming of azeotrope.

该过程在真空下操作，控制系统温度低于共沸点，使两组分在分离过程中不形成共沸物，而依靠组分间挥发速度及扩散速度的差异，来突破共沸限制，达到分离目的。

In the end, the extractive distillation method was applied to separate and purify the binary azeotrope mixture, methanol-dimethyl carbonate. The isoamyl acetate was used as extractant and the two tower system was introduced to continuous extractive distillation operation. The results show a better separation effect.

最后采用萃取精馏的方法，对甲醇-碳酸二甲酯的二元共沸混合物进行了分离提纯研究，以毒性较低的乙酸异戊酯为萃取剂，采用两塔连续萃取精馏操作，结果表明，分离效果比较理想。

According to the literatures and our experiments, appropriate conditions for the reaction of C60 with alkyl azide and the separation of adducts were obtained. The relationship between the structure and the chromatographic polarity of the products was also summarized.

根据文献报道和实验总结出了富勒烯与烷基叠氮化合物的反应条件和产物的分离条件，并对化合物结构与色谱极性的关系作了归纳总结。

These models expounded the effect factors in the separation of azole antifungal agents and phosphonate esters on the CDMPC chiral stationary phase, and afforded as theoretic support for this kind of separating experiments.

这些模型从理论上阐述了这两类化合物在CDMPC上拆分过程中的影响因素，为这类手性固定相上的类似拆分实验提供了理论支持。

Baddeley(1996) advanced that central executive functions can make a further separation, including four sub-functions, that are coordinating performance on dual tasks, inhibiting the disrupting effect of others, switching retrieval strategies, and information updating of long term memory.

Baddeley于1996年提出，中央执行控制功能可以进一步分离为对于双任务的协调、抑制无关信息的干扰、策略转换以及对于长时记忆中信息的更新这四种子功能。

In chapter 5,we introduce the De Morgan algebra of metric and investigate the pseudo-metric Uniformity and the pseudo-metric topology and the separation axioms in De Morganalgebra of metric.We establish the Baire category theorem and the Banach contraction theo-rem,the Edelstein contraction theorem and other fixed quasi-atom theorems in De Morganalgebra of metric.In final,we give a sufficient condition for the metrization of a De Morganalgebra of topology.

在第五章里，我们地德摩根代数中引进了伪度量，探讨了伪度量一致和伪度量拓扑以及德摩根度量代数的分离公理，得到了Baire范畴定理、Banach收缩定理、Edelstein收缩定理以及其它不动拟原子定理，最后给出一个德摩根拓扑代数可度量化的充分条件。

All materials for a balsam pear done momorcharin extraction, separation, identification study.

本文以苦瓜为材料，做了苦瓜子蛋白的提取、分离、鉴定的研究。

There is some balsam separation, which appears as semi-transparent flower-shaped patches near the front of the lens.

有某一凤仙花分离，哪些出现作为半透明的花形状的补钉在透镜的前线附近。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐