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环丙烷

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The results showed that the yield of phenyl glycidyl ether was 96.8% when the mole rate of sodium phenolate and epichlorohydrin was 1.15:1, the mass ratio of ionic liquid and reactant 2:1, reaction temperature 70℃ and reaction time 2h.

结果表明,在反应温度为70℃,反应时间为2h,反应物苯酚钠与环氧氯丙烷的物质的量比为1.5:1,离子液体与反应物的质量比为2:1时,苯基缩水甘油醚的产率为96.8%。

The influence of reaction temperature and WHSV on conversion of propylene oxide is not appreciable.

反应温度和空速对环氧丙烷的转化率影响不大。

This is a novel, environmentally friendly and economical method for making propylene oxide without co-product.

这是环境友好、无联产品、经济合理的制环氧丙烷的新方法。

Only the major Isomers be displayed in the attacks of propylene oxide was replaced by the less carbon.

只有主要位置异构体被显示攻击在环氧丙烷较少被取代的碳。

Using the density functional theory, the reaction of chlorine trifluoride with propylene oxide was studied.

应用密度泛函理论对三氟化氯和环氧丙烷反应产生C3H5O和C1F2自由基的机理进行了研究。

We examined the association between intakes of the heterocyclic amines 2-amino-3,8-dimethylimidazo[4,5,-f]quinoxaline, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine,2-amino-3,4,8-trimethylimidazo[4,5,-f] quinoxaline, and meat-deried mutagenicity and risk of distal colon adenoma using a cooking method questionnaire administered in 1996 in the Health Professionals Follow-up Study cohort.

我们卫生保健跟踪调查组采取烹调方法调查表的形式在1996年调查了摄入杂环胺2-氨基-3,8丙烷[4,5,-f] 喹噁啉,2-氨基-1甲基1-6-苯基亚氨基[4,5-b] 吡啶,2-氨基3,4,8-trimethylimidazo[4,5,-f] 喹噁啉和肉类衍生致突变物与患末端结肠腺瘤危险性的关系。

We examined the association between intakes of the heterocyclic amines 2-amino-3,8-dimethylimidazo[4,5,-f]quinoxaline, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine,2-amino-3,4,8-trimethylimidazo[4,5,-f] quinoxaline, and meat-derived mutagenicity and risk of distal colon adenoma using a cooking method questionnaire administered in 1996 in the Health Professionals Follow-up Study cohort.

我们卫生保健跟踪调查组采取烹调方法调查表的形式在1996年调查了摄入杂环胺2-氨基-3,8丙烷[4,5,-f] 喹噁啉,2-氨基-1甲基1-6-苯基亚氨基[4,5-b] 吡啶,2-氨基3,4,8-trimethylimidazo[4,5,-f] 喹噁啉和肉类衍生致突变物与患末端结肠腺瘤危险性的关系。

The method of increasing the capacity of saponification waste water treatment by data analysis was discaussed.

论述了氯醇法环氧丙烷装置产生的皂化废水的处理方法,探讨了采用数据分析提高皂化废水处理能力的方法,并提出了相应的处理措施。

The methods of treating saponification waste water from the chlorohydrination production facility of epoxy propane were introduced.

论述了氯醇法环氧丙烷装置产生的皂化废水的处理方法,探讨了采用数据分析提高皂化废水处理能力的方法,并提出了相应的处理措施。

With the size of alcohol ROH increasing, space steric block made solvolysis activity of propylene oxide decrease.

空间位阻的变化,使得环氧丙烷溶剂解反应活性随着醇类溶剂的分子增大而减小。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。