烯
- 与 烯 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the absence of organic solvent and phase-transfer reagent, the catalytic oxidation of cyclo- hexene to adipic acid with aqueous 30% hydrogen peroxide can be achieved in the presence of tungstic acid/acidic organic additive.
以钨酸/有机酸性添加剂为催化体系,在无有机溶剂、相转移剂的情况下,催化 30%过氧化氢氧化环己烯合成己二酸。当钨酸∶有机酸性添加剂∶环己烯∶过氧化氢=1∶1∶40∶176(摩尔比,钨酸用量为 2.5 mmol)时,使用有机酸性添加剂考察钨酸的催化性能,结果表明以钨酸/间苯二酚催化氧化环己烯的催化效果最优,反应 8 h 时己二酸分离产率达 90.9%、纯度为~100%;而不使用有机酸性添加剂时,己二酸分离产率只有 72.1%,产品纯度为 96.2%。
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For the riser reactor, the simulation result showed that the mass fraction of olefin decreased from 35.1% to 18%, and most of the olefin was converted to isoparaffin, which was useful to maintain the gasoline octane rating.
模拟结果表明,对提升管反应器而言,汽油经过低温改质反应后,烯烃含量可以从35.1%降低到18%左右,烯烃降低幅度可达48%,汽油中烯烃主要转化为异构烷烃。
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It shows that Iridoids composition of Valeriana jatamansi Jones have inhibit function on gastrointestinal function of mice with reserpine.1.3 Effection of Iridoids composition of Valeriana jatamansi Jones on gastrointestinal function of IBS rats induced by chronic stressMethods:Animals were randomly divided into7 groups:normal group,model group, OSD group,FXT group and Iridoids composition of Valeriana jatamansi Jones groups in quantiy of 24.92mg/kg,12.46mg/kg,6.23mg/kg.model replicating method is chronic stress for 28 days.
说明蜘蛛香环烯醚萜可改善利血平导致的胃肠运动亢进。1.3蜘蛛香环烯醚萜对慢性应激所致IBS大鼠胃肠功能的作用方法:动物随机分为对照组、模型组、昂丹司琼组、氟西汀组、蜘蛛香环烯醚萜24.92mg/kg、12.46mg/kg、6.23mg/kg组。
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It shows that Iridoids composition of Valeriana jatamansi Jones have inhibit function on gastrointestinal function of mice with reserpine.1.3 Effection of Iridoids composition of Valeriana jatamansi Jones on gastrointestinal function of IBS rats induced by chronic stressMethods:Animals were randomly divided into7 groups:normal group,model group, OSD group,FXT group and Iridoids composition of Valeriana jatamansi Jones groups in quantiy of 24.92mg/kg,12.46mg/kg,6.23mg/kg.model replicating method is chronic stress for 28 days.
说明蜘蛛香环烯醚萜可改善利血平导致的胃肠运动亢进。1.3蜘蛛香环烯醚萜对慢性应激所致IBS大鼠胃肠功能的作用方法:动物随机分为对照组、模型组、昂丹司琼组、氟西汀组、蜘蛛香环(来源:49ABC论文网www.abclunwen.com)烯醚萜24.92mg/kg、12.46mg/kg、6.23mg/kg组。
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The latices were stable ,thixotropic and monodisperse .The particle sizes range from 192 to 94 nm depending on the acrylamide fractions. The Hofmann reactions of these latices were carried out to introduce primary amines on the particle surface.
由于一直以来,丙烯酰胺-苯乙烯的共聚物胶乳只能用于制备两性胶乳,为了得到较高的胺化度,我们对不同单体配比的丙烯酰胺-苯乙烯共聚物胶乳进行Hofmann反应,探讨了丙烯酰胺在单体中所占的比例对Hofmann反应的影响。
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Synthesis of organic sulfuric compounds in aqueous media is carried out by: using thio-olefin compounds with carbonyl compounds, acetal/keltone, hydrazone, oxime, osazone and enamine to synthesize mercaptal/keltone compounds in aqueous media; using thio-olefin compounds with alpha-hydroxyaldehyde/keltone or alpha-halogenated aldehyde/keltone to synthesize thia-olefin derivatives in a queous media; using thio-olefin compounds with alpha, beta-unsaturated hydroxy compounds, C-C treble bond, C-N treble bond, C-C double bond, N-N double bond, C-N double bond, C-S double bond, epoxy and its derivatives, aziridine and its derivatives, cyclopropane and its derivatives and halogenated carboxy to synthesize sulfoether compounds in a queous media.
含水介质中有机硫化合物的合成方法,本发明属于有机合成方法,用硫缩烯酮类化合物与羰基化合物、缩醛/酮、腙、肟、脎、烯胺在含水介质中合成缩硫醛/酮化合物,与α-羟基醛/酮或α-卤代醛/酮在含水介质中合成噻烯类衍生物,与α,β-不饱和羰基化合物、碳碳叁键、碳氮叁键、碳碳双键、氮氮双键、碳氮双键、碳硫双键、环氧乙烷及其衍生物、氮杂环丙烷及其衍生物、环丙烷及其衍生物、卤代烃等在含水介质,中合成硫醚化合物。
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The steoreselectiviy showed the E selectivity in most of cases and Z selectivity was presented in larger substituents like mesityl and 1-naphthyl.
进一步增大烯上的取代基则可以得到Z选择性的烯炔产物。利用如此的方式,也许还可以用来合成含烯炔的高分子。
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AM - NaAMPS - DEAM terpolymer was synthesized from acrylamide, Sodium - 2 - acrylamido - 2 - methylpropane sulfonate and N,N - diethylacrylamide by free radical initiation copolymerization in aqueous solution.
以丙烯酰胺,2-丙烯酰胺-2-甲基丙碳酸钠,N,N-二乙基丙烯酰胺为单体,通过在水溶液中自由基引发共聚合,合成出了AM-NaAMPS-DEAM三元共聚物。
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Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO(superscript 2- subscript 4)/TiO2-ZrO2 solid superacid was investigated.
研究了SO(上标 2-下标 4)/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应,通过GC、GC-MS和红外分析,确定其主产物为4-(4-甲基-3-戊烯基)-4-环己烯-1,2-酸酐。
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Synthesis and Structural Analysis of New Monoterpene Derivatives from β-myrcene ;2. Diels-Alder reaction between β-myrcene and maleic anhydride catalyzed by SO2-4/TiO2-ZrO2 solid superacid was investigated.
研究了SO42-/TiO2-ZrO2型固体超强酸催化剂的制备及其催化β-月桂烯与马来酸酐的Diels-Alder反应,通过GC、GC-MS和红外分析,确定其主产物为4-(4-甲基-3-戊烯基)-4-环己烯-1,2-酸酐。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。