查询词典 distillation

Without any superstructures of distillation system, the feasible region could be looked for automatically.

在不必给定精馏系统超结构的情况下，能够完成可行域的自动搜寻。

Influence of different distillation conditions were studied from the standpoint of yield and composition of fennel essential oil.

结果表明：粉碎程度是最重要的蒸馏参数，在粉碎程度最细的组合中其精油产量和反-茴香脑含量均较高

Methods: Distilled essential oil of fennel seeds by simultaneous distillation and extraction, then analysed with GC/MS.

使用同时蒸馏萃取法提取茴香种子精油，进行GC/MS分析。

Extracted plant essential oil from Ferula sinkiangensis K. M. Shen, Cumimum cyminum and Trigonella foenum-graecum by method of wet distillation and researched the repellent effect to Tribolium castaneum.

方法］采用水蒸气蒸馏法，从阿魏、孜然粉、香豆粉中提取植物精油，并研究了不同浓度植物精油对赤拟谷盗的趋避作用。

Obtained by fractional distillation of liquefied air, it is used in luminescent tubes, flash lamp s, lasers, and tracer studies and as an anesthetic.

用于频闪仪和高摄影术所用的极短促而强烈的闪光灯中。氙闪光灯已用于活化红宝石的激光器。仅与氟和氧化合生成。

On the basis of comprehension of process flow , process mechanism and principle of crude oil distillation, we analyze various factors which affect viscosity and flash point.

在了解了工艺流程、工艺机理和原油蒸馏的原理的基础之上，分析了影响粘度和闪点的各种因素。

Fractional distillation of petroleum is carried on in a still.

石油的分馏在蒸馏器内进行。

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。

It occurs in minute amounts in the atmosphere and is obtained by fractional distillation of liquefied air.

大气中含量极少，从液态空气的蒸馏中可以得到。

Krypton occurs in trace amounts in the atmosphere and in rocks and is obtained by fractional distillation of liquefied air.

在大气和岩石中只有极微量的氪，可以通过液态空气的分馏来得到它。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。