以下为句子列表:
英文: Abstract: 1-(4-Pyridinyl)-2-propanone,which is the key intermediate of synthesizing the milrinone ,a cardiotonic agent,was synthesized from 4-methyl-pyridine by acetylation in dichloromethane and phase transition catalyzing hydrolysis.The overall yield wa
中文: 文摘:报道了以4-甲基吡啶为原料,经酰化和相转移催化水解反应制备强心药物米利酮关键中间体1-(4-吡啶基)-2-丙酮的新合成方法,总收率达73.1%.
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英文: By using the method of fault tree analysis, this paper analyses the causes of fire and explosion of catalying &cracking reactor and regeneration, draws the fault trees of fire and explosion accidents of catalyzing &cracking reactor and regeneration respec
中文: 摘要应用故障树分析方法,对催化裂化反应器和催化裂化再生器发生火灾(爆炸)事故的原因进行分析,分别画出催化裂化反应器和催化裂化再生器发生火灾(爆炸)事故的故障树,得出最小径集合,并计算其结构重要度,根据得出的最小径集合及其结构重要度进行排序,提出预防措施,为企业的安全管理提供了可靠的理论依据。
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英文: Enzymes are either intracellular, catalyzing reactions within the cell such as those involved in the metabolic, regulatory, signaling, or synthesis pathways; or extracellular, circulating in the spaces between cells or in the bloodstream, where they catal
中文: 酶可以是细胞内的,催化细胞内的反应如:新陈代谢、调节、信号传导或合成过程;或细胞外的,在细胞间或血液里循环,并在那里催化对于多细胞生物的功能具有重要作用的反应。
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英文: If the fewer the remains of sodium sulfite in water sample and the lower the water treatment expenditure are,the better the judge criterion is;cabaltous sulfate catalyzing sodium sulfite is the most applicable deoxidant used for the vapor injection boiler
中文: 若按处理后水样中亚硫酸钠的残余量和吨水处理费用越少越好为衡量标准,硫酸钴催化亚硫酸钠除氧剂是最适合用作油田注汽锅炉用水除氧的除氧剂。
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英文: At 0℃, pH 8.0, the Michaelis-Mentent equation to the reaction of ACC synthase extracted from etiolated hypocotyls of soybean catalyzing SAM was: y=97.7x+.9×0~. The Michaelis constant Km was . μmol·L~(-).
中文: 在反应温度为 0℃,pH值为8.0的条件下,伤害处理的大豆黄化幼苗下胚轴部分提取的ACC合酶对底物SAM催化反应的米氏方程为:y=97.7x+.9×0~,米氏常数Km为 . μ mol·L~(-)。
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