aldehyde ketone
英
美
网络 醛酮
双语例句
- Investigation on Emission Characteristics of Methanol ( Vehicle's) Aldehyde and Ketone Pollutants
甲醇燃料车醛酮类污染物排放特性研究 - Particle Size Distribution of Particulate Matter Emission from the Diesel Engine Burning Methanol-diesel Fuel and Biodiesel Investigation on Emission Characteristics of Methanol ( Vehicle's) Aldehyde and Ketone Pollutants
甲醇柴油与生物柴油微粒排放粒径分布特性甲醇燃料车醛酮类污染物排放特性研究 - Theoretical Study on Nucleophilic Addition-Condensation Reaction of Thiosemicarbazide with Aldehyde and Ketone
氨基硫脲与醛酮加成&缩合反应理论研究 - Bio-oil is a complicated mixture of organic compounds with water containing almost all kinds of organic compounds such as aether, ester, aldehyde, ketone, hydroxybenzene, alcoholic, organic acid and etc.
生物油成分分析表明，生物油是一种复杂含氧有机化合物与水组成的混合物，包括了几乎所有化学类别的有机物，如醚、酯、醛、酮、酚、醇和有机酸等。 - The ion/ molecule reactions of low-mass Organic molecules, such as alcohol, ether, amine, aldehyde, ketone and so on, were studied by the ion trap MS.
利用离子阱质谱原理和内离子源的特点，确定了小分子醇、醚、胺、醛、酮等有机物在离子阱里的反应为自身化学电离（SCI）反应； - The result showed that there was no significant different in the content of aldehyde, ketone, alcohols in the flesh of apple with different bags, but the content of esters and soluble solid content in the fruits with 14-B double layer decreased significantly at harvest.
结果表明，不同类型的袋子对乙醛、丙酮、醇类物质的含量没有显著的差异，但套14-B双层袋在果实采收期显著降低了果实中的酯类和可溶性固形物。 - We deduced that reactivity of unsaturated carbonyl compound was: Aldehyde> ketone> ester.
并推测出不饱和羰基化合物的反应活性为：醛＞酮＞酯。 - The made tea fertilized with urea possessed higher contents of aldehyde, ketone, furan, pyrazine and pyrrole, but lower aromatic index.
香气分析测定表明，单施尿素的红茶中，醛酮类、呋喃、吡嗪、吡咯类化合物含量较高，香气指数低，祁红香不突出。 - An Exploration of the Reaction Mechanism of Substituted Hydrazines and A 、 B Unsaturated Aldehyde Ketone
取代肼与α、β不饱和醛酮的反应机理探究 - The results show that the oxidizing degraded products have functional groups such as phenolic hydroxyl, carboxyl ( Ar-CO-O-), methylene and etc., and have no chlorine or hydrocarbon substitute aromatics, aldehyde, ketone and quinone.
结果表明，荆树皮栲胶氧化降解产物的主要官能团有酚羟基、羧基（结构为Ar-CO-O-）、亚甲基等，不含氯代或烃基取代芳烃、醛、酮及醌。 - A study of addition reaction about α,β-unsaturated aldehyde and ketone
α、β-不饱和醛、酮加成反应的研究 - This paper reviewed the application of Arsenic reagent in organic synthesis, cyclic compound, unsatured aldehyde ketone 、 amide 、 related natural product 、 derivative of ethyleneamine.
综述了砷试剂在合成元素有机化合物，环状化合物，不饱和醛酮、酰胺以及有关的天然产物，烯胺的衍生物等方面的应用。 - Preparing alkenyl halide from aldehyde and ketone.
3，以醛酮为原料合成卤代乙烯类化合物。 - Based on the reported pinacol coupling of aldehyde and ketone mediated by low valent vanadium or titanium, some new reaction systems or methods were explored to improve the chemoselectivity and stereoselectivity of pinacol coupling.
本文在总结利用低价钒、钛诱导醛酮发生片呐醇偶联反应的基础上，寻求新的反应体系或方法，以提高片呐醇偶联反应的化学选择性和立体选择性。 - Efficient conversion of pentaerythrite with carbonyl compounds, aldehyde or ketone, to the corresponding pentaerythritol dialdehyde or diketone compounds in the presence of ammonium hydrogen sulfate under microwave irradiation without solvent was described.
无溶剂微波照射下，通过硫酸氢铵催化***和醛、酮反应合成了***双缩醛、酮化合物。 - The chemical constituents of allelopathic fractions were identified by GC-MS as organic acids, phenol, aldehyde, ketone, benzene, amine, nitrile, ester and some other compounds, some of which were allelochemicals.
乙酸乙酯、正丁醇、XAD4树脂提取组分中的有机化合物种类有：有机酸、酚、醛、酮、苯、胺、腈、酯等，其中大多为化感物质。 - Electronic effect of nucleophilic additions to α, β-unsaturated aldehyde and ketone
α，β-不饱和醛酮亲核加成的电子效应 - Inactivation effect of alkaline phosphatase from Haliotis diversicolor in the solutions of alcohol, aldehyde and ketone
杂色鲍碱性磷酸酶在醇、醛和酮溶液中的失活作用 - Studies on the Synthesis of Pyridazinone-Aryl Aldehyde ( Ketone) Oxime Ether Derivatives
哒嗪酮-类肟醚菊酯衍生物的合成研究 - Pollutants such as aldehyde and ketone, among major pollutants in atmosphere environment, are strictly limited by every nation for their discharges because of their high toxicity and numerous sources.
醛、酮类污染物是环境中的主要污染物之一，其来源广、毒性大，各国对其排放都进行了严格的限制。 - Study on reductive coupling reaction of aldehyde and ketone induced by lower valent titanium prepared from TiCl_4-Al system
TiCl4-Al体系中低价钛诱导下醛酮还原偶联成片呐醇的反应研究 - Advanced in Research of the Catalytic Condensation Reaction of Aldehyde Ketone
催化缩醛（酮）反应的研究进展 - Study on the reaction of aromatic aldehyde and ketone catalyzed by lewis acid under microwave irradiation
微波促进、Lewis酸催化下芳香醛与芳香酮的反应研究 - Discussion on oxidation of aldehyde and ketone
关于醛酮氧化反应的讨论 - Commonly, oxidation of N, N-disubstituted hydroxylamines and condensation of aldehyde or ketone with hydroxylamines are the most used method.
其合成方法很多，常用的有氧化法如N，N-二取代羟胺的氧化和缩合的方法如醛或酮和羟胺的缩合。 - Due to the special additives in fracturing system, fracturing wastewater contains more big Senior fatty acid kind organic and Aldehyde ketone organic types.
由于压裂体系中的特殊添加剂，压裂水中含有较多大的高级脂肪酸类有机物和醛酮类有机物种类。 - As we know, aldehyde, ketone and amide are very important organic compounds. Because of their special structures, though the methodes about their syntheses are still expanded, the research for the new synthetic method is still a challenge field in the organic chemistry.
醛、酮及酰胺是重要的有机核心化合物，尽管其合成方法不断得到拓展，但由于其特殊的结构，其合成新方法的研究依然是有机化学一个既古朴又富挑战性的研究领域。 - It has been known that small organic molecules can catalyze the direct aldol reaction between aldehydes or between aldehyde and ketone.
近年来，有机小分子已经被证实可以有效地催化醛酮的直接羟醛缩合反应。