分馏的

Distillate inventories now cover almost 49 days of supply against about 29 days at this time last year.

馏分油库存目前相当于将近49天的供应量，而上年同期只相当于大约29天的供应量。

Some suggestions are presented to improve the performance of the feed system, distiller,fraction collector system and cooling system of the molecular distillation equipment.

在此基础上，对分子蒸馏设备的进料系统、蒸馏器、馏分收集系统和冷却系统的进一步改进提出了一些建议。

with the hydroisomerization dewaxing process of shell company, apiⅱgroup and apiⅲgroup lube base oils were produced by taking vgo no.4 and dao from xinjiang karamay paraffin crude oil as raw materials after a series of lab tests and commercial trial production. the developed oils can meet the quality requirements of hviwh300 and vhvih90bs respectively. but all the haze points of the two products are about 16 ℃, and the floccus will appear in these oils with the time going by. the problem of haze point in high viscosity lube oil will still need to study continually.

采用壳牌公司以异构脱蜡催化剂为核心的全加氢工艺，对新疆克拉玛依石蜡基原油减四馏分油、轻脱油进行了实验室工艺研究，并经工业试生产，可以生产出apiⅱ、ⅲ类润滑油基础油，其主要产品性质可以分别满足中国石油hviwh300、vhvih90bs的质量要求，但这两种大粘度产品浊点达到16 ℃左右，室温下长期存储会出现絮状物，需要进一步研究解决。

These early observations have been supplemented with results from chemical fractionation.

这些早期的观察曾为化学馏分的结果所增补。

Euler's gamma function gives factorials for integers but has surprising values for fractions.

欧拉的Gamma函数给出阶乘为整数，但令人惊讶的价值观为馏分。

Characterization of CGRP in perfusate showed one predominant peak to coelute with synthetic rat CGRP by reverse-phrase HPLC.

经反相高压液相分析，内毒素灌流所得馏分的CGRP免疫活性峰位在第40min，与大鼠CGRP标准品的峰位吻合。

It was found that vegetable compound wax prepared from 16.7% vegetable wax, 18.8%, 58.3%, 4.1% and 2.1% exhibited excellent performance having needle penetration of 68 (1/10) mm, drop melting point of 60℃, kinematic viscosity of 8.13 mm2/s and its oil content was 34.81%. Besides, it was convenient to be used and transported since it was solid at ambient temperature, thus, it was an ideal oil phase material for emulsion explosive.

当植物蜡用量为16.7%、减五线馏分油用量为18.8%、减四线蜡下油用量为58.3%、微晶蜡用量为4.1%、石油树脂用量为2.1%时，制得的植物型乳化炸药专用复合蜡针入度68 （1/10）mm、滴熔点60℃、运动粘度8.13mm2/s、含油量34.81%，其性能优异，常温下呈固态，方便使用和运输，是乳化炸药理想的油相材料。

Factors,such asfunctionaladditiveforinternalcombustion engine,blending temperature,distilla tion range ofbaseoiland the complex ratio of antifoaming agent ,affectthefoaming performancearehigh lighted.

报道不同种类抗泡剂在不同润滑油中的泡沫特性，重点介绍了内燃机油功能添加剂、油品调合温度、基础油馏分组成、抗泡剂复合比例等对油品泡沫特性的影响。

There are abundant fluorene and dibenzofuran consist in gas absorber oil from c.

煤焦油的馏分洗油中有含量较高的芴和氧芴。

The fraction between the temperature range of 130℃ and 160℃ wascollected and the levulinic concentration was 98%.

洗脱液经浓缩后，在0.00266MPa下精馏，收集130℃-160℃的馏分，最终得到乙酰丙酸的纯度为98％。

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。