查询词典 compound proportion
- 与 compound proportion 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Synthesis of Antidote of N-Dichloroacetyl-2-methyl-1-oxa-4-aza-spiro-4.4-nonane BI Hong-mei, ZHANG Jin-yan, LIANG Ying, SHEN Yong (College of Arts and Sciences Heilongjiang August First Reclamation University, Daqing 163319, Heilongjiang, China) Abstract: N-Dichloroacetyl-2-methyl-1-oxa-4-aza-spiro-4.4-nonane was synthesized by one pot method with isopropanolamine, cyclopentanone and dichloroacetyl chloride. The optimum reaction conditions obtained are as follows:the proportion in moles of the above materials is 1∶1∶1.2, reaction solvent is toluene, reaction temperature is -15 to -10 ℃,reaction time is 3 h, under the optimum condition, the yield of the compound is 50.0%.
除草剂解毒剂N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷的合成毕洪梅,张金艳,梁英,沈勇(黑龙江八一农垦大学文理学院,黑龙江大庆 163319)摘要:以33%的氢氧化钠水溶液为缚酸剂,异丙醇胺、环戊酮和二氯乙酰氯为原料,采用&一锅法&合成了N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷,采用正交实验法得到最佳反应条件:反应原料摩尔比为1∶1∶1.2,苯作溶剂,反应的温度为-15 ℃~-10 ℃,搅拌时间为3 h,产率达到50.0%。
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The optimum formula was as follow: the fresh milk and emblic leafflower fruit juice mixed according to the proportion of 8:1, and 8.5% sugar were added; optimum compound stabilizers: starch 0.10%+pectin 0.025%+PGA0.05%; amount of latic acid bacterium: 5%; fermenting temperature: 42℃; time of fermentation: 2.5h.
结果表明,余甘子酸乳的最佳配比为:鲜牛乳与果汁比例8:1、蔗糖含量8.5%,复合稳定剂为淀粉0.10%+果胶0.025%+PGA0.05%。最佳发酵工艺条件为:接种量5%、滴定酸度76~80°T、发酵温度为42℃、发酵时间为2.5h。
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The results illustrate the facts that:(1) The best catalyst among them is manganous sulfate,(2) compound catalyst consisting of a mixture of metal sulfates in proper proportion is better than any one of them used alone.
本文研究的第二种脱硫新工艺是采用MnSO〓等催化剂使SO〓经过液相催化成SO〓进而形成稀硫酸,实验发现MnSO〓相对于ZnSO〓和〓有较好的催化作用,三者按一定比例组成的复合催化剂的催化能力优于单组分的催化能力。
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OBJECTIVE: To investigate the ability of decalcified bone matrix and acrylic bone cement compound in filling and repairing bone defect, and to determine the best component proportion of the composition.
目的:观察脱钙骨基质颗粒、丙烯酸树脂骨水泥复合物填充修复股骨骨缺损的能力,从而确定该复合材料的最佳配方。
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Compound feed: It refers to fodder of a fixed type, evenly mixed with different fodders according to a definite proportion by scientific method for feeding different animals, in their different stages of growth and meeting different needs for various nutritious elements.
配合饲料:指根据不同的饲养对象、饲养对象的不同生长发育阶段对各种营养成分的不同需要量,采用科学的方法,将不同的饲料按一定的比例配合到一起,并均匀地搅拌,制成一定料型的饲料。
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The building formwork of wood and plastic composite material is a new type in which the waste thermoplastics,a large proportion of sawdusts and the necessary additives are used to produce the wood and plastic composite material in a proper compound technique and then fixed and combined with the wooden frame.
木-塑复合材料建筑模板是利用废旧热塑性塑料与大比例木屑和必要添加剂,经适当复合工艺生产的木-塑复合材料,与木框架固定组合而成的一种新型建筑模板。
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The proportion of the phase transfer catalyst and tertiary amine are usually in the range of about 1-5 and about 0.01-5.0 mole percent, respectively, based on total dihydroxyaromatic compound and dicarboxylic acid employed. In the second phosgenation step, the pH is raised to at least 10 and a stoichiometric phosgene excess of at least 5% is introduced.
相转移催化剂和叔胺的比例以二羟基芳族化合物和二羧酸的总量为基础计通常分别在约1―5和0.01―5.0摩尔百分数的范围内,在第二步光气化步骤中,pH值升高到至少约10,并导入超过化学计量约至少5wt%的光气。
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A proper proportion of nitrate nitrogen fertilizer is added in the speciality compound fertilizer for commercial crops, such as tobacco, cotton or hot pepper, which results in high yield and good quality.
烟草,棉花,辣椒等经济作物的专用肥中配入一定比例的硝态氮,可提高其产量,质量,介绍几种经济作物专用肥的原料配比及产品质量。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。