乙烷的例句（乙烷在句子中的用法）

• However, these were incapable of being inactivated ethylene oxide as stated previously. 不过如前所述, 这些孢子也无法被环氧乙烷灭活.
• 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.
• Advances in ethane dehydrogenation to ethene have been reviewed. 乙烷脱氢制乙烯是乙烷利用的有效途径.
• BA 110 ethane pyrolysis furnace is an important equipment of ethylene plant. BA110乙烷裂解炉是乙烯装置的重要设备.
• The cloud might be snowing ethane snowflakes into methane lakes below. 云层可能正在向下面的甲烷湖飘落乙烷雪.
• The gas , which is sulphur - free , contains 89 - 99 % methane, up to 6 % ethane, and 3 % propane. 天然气不含硫, 含甲烷88-99%, 乙烷6%和丙烷3%.
• Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes. 某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.
• The method and the condition of separation epoxy ethane from dihydric alcohol are described. 介绍了环氧乙烷与二元醇的分离方法和条件.
• N, N - diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst. 以苯胺和溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下合成N, N二乙基苯胺.
• Objective : To investigate the CT and MRI features of Subacute intoxicated encephalopathy induced by 1,2 - dichloroethane ( 1,2 - DCE ). 目的: 探讨1,2-二氯乙烷中毒性脑病的CT、MR表现.
• Dichloroethane can be converted to VCM. 二氯乙烷被转化为氯乙烯.
• The production and consumption presents of ethylene dichloride, and development prospect in the world were analysed. 分析了世界二氯乙烷的生产消费现状及发展前景,指出了发展趋势.
• Objective : To study the sampling and determinating method of Ethylene dibromide among the workplace air. 目的: 探讨工作场所空气中1,2-二溴乙烷的采样和测定方法.
• The recycle ratio anodynon is 84 % above the yield level of the same industry in domestic. 氯乙烷收率可达84%以上,远远高于国内同行业的收率水平.
• They are acrylaldehyde hydration, ethylene oxide formylation and biological zymolysis methods. 即丙烯醛水合法, 环氧乙烷甲酰化法,生物发酵法.
• In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent. 在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.