A flammable gaseous fraction of petroleum, consisting chiefly of butane.

KX 50 butane flow proportional counter is described and its plateau characteristic is determined.

实验证明用丁烷作为流气式正比计数管的工作气体是可行的.

The polyhedral flame has been observed clearly when butane burns in some laminar, conditions.

在一定条件下,层流预混气体燃烧过程中可清晰地观察到多棱火焰现象.

Butane is found into both oil and natural gas.

丁烷气体是从石油和天然气中找到的.

A mathematical model was established for catalytic dehydrogenation of butane in plug flow membrane reactor.

建立了模拟真实实验室膜反应器的数学模型:活塞流数学模型.

The polyhedral flame has been observed when butane burns in some laminar conditions.

在丁烷层流预混气体的燃烧过程中清晰地观察到多棱火焰现象.

Other are less common, can include ethane, propane, butane and light and heavy naphtha.

其它不常用的原材料包括乙烷 、 丙烷 、 丁烷以及轻、重石脑油.

The butane conversion of catalyst aged in different pH has similar value.

在不同pH值老化的催化剂先驱体,经活化后对丁烷的转化率基本相同.

The main component in 4 # solvent is liquefied butane.

四 号 溶剂主要成分为液化丁烷.

Synthesis of n-butyl chloro acetateacid and n-butanol in the presence of stannic chloride pentahydrate was studied.

在五水四氯化锡存在下,由氯乙酸和正丁醇合成氯乙酸正丁酯.

The mechanism of dehydrogenation of secondary butanol and the catalyst characteristics and regeneration steps were introduced.

简单地介绍了仲丁醇脱氢反应的机理、催化剂的特点和催化剂的再生步骤.

Tri-butyl citrate was synthesized from citric acid and butanol catalyzed by acidic bentonite.

以柠檬酸和正丁醇为原料,在自制酸性膨润土催化下合成了柠檬酸三丁酯.

The added n-butanol facilitates the formation of F 127 micelles and makes the CMT of F 127 solutions decrease.

正丁醇的加入有利于F127单体分子聚集形成胶束,使得F127溶液的CMT降低.

Synthesis of dibutyl sebacate from decanedioic acid and butanol by a self-made catalyst.

采用 自制 的催化剂,运用条件实验法,以癸二酸、正丁醇为原料直接酯化合成癸二酸二丁酯.

Objective : To study the anti-inflammatory and analgesic activities of ipomoea pescaprae ( IP )-butanol extract andanti-inflammatory mechanism.

目的: 研究马鞍藤 ( IP ) 正丁醇提取物 抗炎 镇痛作用及机制.

Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.

研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.

Methods Three different concentrations of the n-butanol extract of MOH ( BEM ) : 0.038 g · L ~ (-1 ), 0.11 g · L ~ (-1 ) and 0.34 g · L ~ (-1 ) were prepared.

巴戟天醇提取物 ( BEM ) 配成含生药0.038g·L~ ( -1)、0.11g·L~ ( -1 ) 、 0.34g·L~ ( -1 ) 三种浓度药液.

The proanthocyanidin content in the ultrafine powder of grape seed was determined inn-butanol-HCl reaction medium.

以正丁醇 - 盐酸为铁盐催化法的反应介质,测定了葡萄籽超微粉中的原花青素含量.

The definilion of kauri-butanol value and its determination method is described.

文章叙述了“溶剂汽油”一词的由来,K. B.值的定义及测定方法.

In the epoxidation, chloroform and t butanol gave the best results.

在环己烯环氧化反应中, 以氯仿和叔丁醇为溶剂时,环氧化反应的结果最好.

The performance of polyimide nanofiltration membrane to separate 2-butanone and oil was investigated.

主要研究了聚酰亚胺纳滤膜分离酮苯-润滑油的性能.