馏分

Whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的''。'过程'。''；把石油分子分解成更小的分子并提取低沸点的分馏部分的''。'过程'。''。

Most plasmapheresis is for fractionation into other products, other blood donations are transfused with relatively minor modifications.

大多数血浆去除法是为了分馏成其他产品，其他的血液捐献用于输血很少被改变。

In the light of delayed coke operation in Petrochina Jinzhou Petrochemical Company,and in consideration of the major factors affecting the longterm operation of the coke,the purpose of reducing coking in furnace tubes,coke tower gas pipelines and fractionators were all analyzed.

结合中国石油锦州石化公司延迟焦化装置的实际运行情况，从加热炉、焦炭塔大瓦斯管线和分馏塔结焦方面，分析了制约延迟焦化装置长周期运行的主要因素，在此基础上，给出了该装置为延长运转周期所采取的一些措施，并提出了改进建议。

Biocell Laboratories, Inc has four decades of expertise in the fractionation and purification of human and animal serum proteins and is currently the only U.S. producer of bovine serum albumin and bovine gamma globulin utilizing the Cohn Cold Ethanol Precipitation Process.

Biocell实验室，公司在人类和动物血清蛋白的分馏和提纯上有四十年的经验，目前是美国利用科恩的冷乙醇沉淀法生产牛血清白蛋白和牛丙种球蛋白唯一生产商。

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。

Some possible explanations were also raised for the solubilization prolesobtained based on fractionation analysis.

一些可能的解释，也提出了溶profilesobtained基于分馏分析。

It is concluded that the MSF is safe for long-term treatment and the mechanism of contraception is shown by its effect on spermatid differentiation in the testis, possibly mediated by the Sertoli cell factors.

本研究表明用番木瓜种子甲醇分馏物长期治疗是安全的，其避孕机制是通过对睾丸中精子细胞分化产生影响，可能由Sertoli细胞因素调节。

It\'s possibly that increase of hydraulic limitation with tree height influenced leaf water potential and turgor as well as leaf structure,which strengthened hydraulic limitation on leaf gas exchange characteristics including photosynthesis and transpiration rate, resultantly influenced carbon assimilation and CO_2 fractionation and increased water use efficiency and drought resistance capability.

应该是水力限制影响了叶片的水势和膨压、同时造成叶片的结构发生改变，而结构的改变加剧了水力对气体交换的限制、影响了光合碳同化以及对CO_2的分馏效应、使叶片的水分利用效率和抗旱性增强。

The results show that there are some differences in the degree of 〓O enrichment for the different types of magmatic rocks, and their sequence of 〓O-enrichment is as follows: acid rocks ＞ neutral rocks ＞ basic rocks ＞ ultrabasic rocks.

结果表明，不同类型岩浆岩氧同位素分馏性质是有差异的，其〓O富集顺序在热力学平衡时为：酸性岩＞中性岩＞基性岩＞超基性岩。

The naturally occurring stable carbon and nitrogen isotopes were used as tracers to study the influence of different ecological factors on the two isotopic compositions in different weever tissues under the control conditions in the metabolic process, and the stable isotope fractionation in weever tissues in metabolic process was used to study the flow pathway of nutrient and energy for food web in the ecological system.

利用天然存在的碳氮稳定同位素作为示踪剂，研究了在受控条件下驯养的鲈鱼的新陈代谢过程中不同生态因子(水温、摄食水平、体重等)对鲈鱼体内不同组织的碳氮稳定同位素组成的影响。通过鲈鱼新陈代谢过程中的稳定同位素分馏作用，研究了在生态系统食物网中的物质与能量转换规律。

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。