- 双语例句
1、
The alkylation of anisole with tert - butanol in hexane solution was investigated by using molybdenum pentachloride.
研究了五氯化钼参与的苯甲醚和叔丁醇在正己烷溶剂中的烷基化反应,结果显示出很高的对位选择性.
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2、
The purified rice amylose and amylopectins were obtained by n - butanol recrystallization method.
采用正丁醇反复结晶法分离得到的直链淀粉和支链淀粉有较高的纯度.
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3、
Using sodium bisulfate as the catalyst, butyl butyrate was synthesized from butyric acid and butanol.
以硫酸氢钠为催化剂, 丁酸与丁醇为原料合成了丁酸丁酯.
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4、
The kinetics of dehydrogenation of 2 - butanol to butanone on Ni Ultrafine particle catalyst has been studied.
本文研究了镍超细粒子催化2-丁醇液相脱氢反应的动力学.
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5、
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.
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6、
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.
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7、
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.
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8、
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.
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9、
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.
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10、
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.
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11、
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.
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12、
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.
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13、
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.
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14、
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.
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15、
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.
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