fraction是什么意思

网络释义

用法例句

Analysis of fraction separated in the process of distilling used aircraft deicing fluid by gas chromatography-mass spectrometry;

蒸馏废飞机除冰液所得馏分的气相色谱-质谱分析

Mild Heat Conversion of Gudao Vacuum Residue Narrow Fractions;

孤岛减压渣油窄馏分缓和热转化

In order to confirm the component of some water-based lubricant for metal working, it is adopted that solvent extraction pretreatment is at first, separation and purification by column chromatograph is at second, then using the collected fraction to analyze the infrared spectrum and elements.

为确定某金属加工用水基润滑剂组成成分,采用先经溶剂萃取预处理,再通过柱层析进行分离和提纯,然后对收集的馏分进行红外光谱、元素分析。

Washing oil distillate from coal tar is rich in such valuable organic chemical materials as quinoline, α-methyl-naphthalene, β-methyl-naphthalene, diphenyl, indole, acenaphthene, fluorene, etc.

煤焦油洗油馏分中富含喹啉、α-甲基萘、β-甲基萘、联苯、吲哚、苊、芴等宝贵的基本有机化工原料,介绍了这些组分的分离提取及其在精细化工中的应用,煤焦油的深加工对资源综合利用及精细化工的发展具有重要意义。

The chromatograph skeleton components were analyzed respectively in the distillation of Luzhou-flavour liquor in view of different layers of fermented grains, different liquor yield and different distillates and a set of technical parameters was summarized.

在浓香型白酒提取蒸馏的过程中 ,针对发酵醅层、产酒量、馏分的不同 ,分别进行色谱骨架成分分析 ,探讨并总结了一套工艺参数 ,结果表明,这套摘酒方案对指导生产具有一定的应用价值。

Ingredients in biomass tar and its distillate were analyzed by GC-MS-MS.

采用气相色谱-质谱联机(GC-MS)对生物质焦油及其馏分进行成分分析研究。

With gas chromatographic and mass spectrum(GC-MS) analysis technology,the chemical composition of biomass tar and its distillations were analyzed.

主要采用色谱-质谱联机(GC-MS)成分分析法对生物质焦油及其馏分试样进行成分分析。

A distillation was carried out and complete distillation curves were acquired.

结果表明,热解油品质较轻,200℃以下轻馏分总量高达33%～40%,而且热解温度的升高也有助于增加轻馏分含量。

In the experiment distillation method is adopted and distillations in the different temperature range are collected.

本研究以保护环境,发展生物质能利用技术为背景,采用加热蒸馏的方法,深入研究生物质焦油及其不同温度段馏分的组成成分和热动力学特性,为生物质焦油在化学工业和能源方面的开发利用提供参考。

High purily light liquid paraffin and low condensing point kerosene are produced by urea complex using Zhongyuan crude oil distilling cut as raw materials.

以中原原油直馏馏分为原料，用尿素络合法制得纯度较高的轻液体石蜡和低凝点煤油。

effluent fraction

流出的馏分, 选择的馏分

To separate(a distillate)by distillation.

蒸馏出用蒸馏分离（馏出物）

Measuring distillation range of petroleum fractions by Engler distillation related with gas chromatography simulated distillation technology.

基于色谱模拟蒸馏技术的石油馏分恩氏蒸馏馏程测定方法

middle oil distillate

(煤油与润滑油之间的馏分) 中间馏分

gasoline power fraction

汽油的主馏分, 基本汽油馏分

fractionation of a liquid by distillation.

通过蒸馏分馏液体的过程。

differential partial condensation

部分冷凝的蒸馏分离

airborne fraction of carbon

空气中的碳化合物馏分

on-line destillation analyzer

在线自动蒸馏分析仪

continuous vacuum distillation analyzer

连续真空蒸馏分析仪

automatic process distillator

过程自动蒸馏分析仪

New Mathematical Model for True Boiling Point Distillation and ASTM Distillation Curve of Petroleum Fractions

石油馏分实沸点蒸馏曲线与恩氏蒸馏曲线关系的新数学模型

Study on vapour-liquid equilibrium constants, of straight-run naphtha and kerosene fractions

直馏汽油、煤油馏分汽-液平衡常数的研究

fractional distillation

分馏, 分解蒸馏(法)

A chemical component separated by fractionation.

分馏被分馏出的化学成分

column, fractionating or distillation ,of non-refracotry ,ceramic

陶瓷分馏或蒸馏塔,非耐火的

Fractional distillation of petroleum is carried on in a still.

石油的分馏在蒸馏器内进行。

fractional desorption gas analysis

分馏退吸法气体分析