分馏的

2It is not always easy to separate a mixture Of liquids into pure substances by fractional distillation.

采取分馏的办法把一种混合的液体分成纯物质，这并不总是很轻易的。

Under ordinary pressure, the experiment of simple distillation and fractional distillation is studied.

通过常压下简单蒸馏与分馏的实验研究，阐明双组分体系中温度平台与组分含量、沸点差值之间的关系。

Also, it is discussed about the role of organic acid on fractionation.

同时，探讨了弱有机酸的存在对轻重稀土分馏的影响。

The research status of the stable isotopes in the field of environmental science and the isotope fractionation is revi.

本文介绍了稳定同位素分析方法、稳定同位素分馏的研究现状及其在环境科学研究中的最新应用进展。

Then every generalized skew derivation μon K can be uniquely extended to be a generalized skew derivation of RF and that of Q.

介绍了同位素分馏的基本概念以及利用稳定同位素研究水体蒸发的基本原理。

And the basic factors controlling the isotopic distillation are the temperature and the ratio of water to rock action.

控制同位素分馏的基本因素是温度及水岩比值。

By comparison among concentration of nitrogen compounds, relative contents of pryyolic N-H shielded carbazoles and parameters of C21-/C22+、Pr/nC17 , the results show that slight biodegradation has little effects on the relative contents and distribution of pyrrolic nitrogen compounds, but has certain effect on its concentration.

根据2类原油中含氮化合物浓度、屏蔽型含氮化合物的相对含量与反晕原油生物降解的地化参数C21-/C22+、Pr/nC17等指标的对比研究，发现生物降解作用对该区原油中含氮化合物的相对含量及其分布影响不显，运移作用仍然是造成含氮化合物分馏的主要因素。

Kotina is a Refined ,Bleached and Deodorised Fractionated Palm Kernel Oil based HARD BUTTER with excellent keeping qualitiesAPPLICATIONSKoatina is Bland and Odourless with excellent palatabilityKoatina can also be used for coating and center application in Wafers, Crakers, Nuts and Caramels.

Kotina 是提炼，被漂白的和除臭的被分馏的棕榈橄榄油基于的坚硬黄油与优秀保持的qualitiesAPPLICATIONSKoatina 是平淡和无气味的以优秀palatability Koatina 可能被使用为饼干提取乳脂和奶糖装填 Koatina 可能并且被使用为涂层和中心应用在薄酥饼、Crakers 、坚果和焦糖里。

The invention relates to a continuous method for the intermediate separation of the oxirane produced by the reaction of a hydroperoxide with an organic compound, characterised in that the product mixture generated during the synthesis is separated in a partition-wall column into a low-, middle and high-boiling fraction and the oxirane is taken off with the middle-boiling fraction at the side tap point of the column and the hydroperoxide is taken off with the high-boiling fraction from the bottom of the column.

一种对在环氧烷合成中通过氢过氧化物与有机化合物反应形成的环氧烷进行中间分离的连续方法，其中在隔离壁塔中将该合成中形成的产物混合物分馏得到低沸点馏分、中间沸点馏分和高沸点馏分，并在侧线采出处从中间沸点馏分中取出所述环氧烷，在该塔的底部从高沸点馏分中取出所述氢过氧化物。

Introduction of C 4 food had strong effect on stable isotope metabolism (especially for stable nitrogen isotope) of plateau pikas.

介绍了同位素分馏的基本概念以及利用稳定同位素研究水体蒸发的基本原理。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。