丙酮的

The method of determination of pyruvates content was studied by ultraviolet absorption spectrophotometry.

建立了测定发酵液中丙酮酸含量的紫外分光光度法。

The objectives of this study are to investigate the cavitation intensity and acoustic pressure for various liquids of pure water, tap water, ethanol, ethylene glycol and tetrachloroethylene.

本研究针对纯水、自来水、乙醇、乙二醇、四氯乙烯及丙酮等四种化学溶液进行超音波音压及空泡强度的调查。

The process flow was designed and experimentally studied for separation of acetone, tetrahydrofuran, triethylamine and water mixture.

对丙酮、四氢呋喃、三乙胺、水混合物的分离进行了工艺流程设计和实验研究。

The results suggested the microenvironment of tyrosine and tryptophan of enzyme has been affected.

结果表明；丙酮对酶分子构象有显著的影响。

In addition, there were also some special aromatic substances such as 1-nonanol, hexanoic acid 2-hexenyl ester, propanoic acid 2-hexenyl ester, butanioc acid 3-hexenyl estertrans-2-hexenyl valerate, theaspirane, gerenylacetone, methyl benzoate and ethyl benzoate.

此外还含有一些少量的1-壬醇、己酸－2-己烯酯、丙酸－反－2-己烯酯、丁酸－反－3-己烯酯、戊酸－反－2-己烯酯、茶螺烷、香叶基丙酮、苯甲酸甲酯、苯甲酸乙酯和乙酸辛酯等。

The acetalization and ketalization of various aldehydes and ketones with catechol by using HY zeolite as catalyst were studied.

研究了 HY分子筛催化邻苯二酚与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正己醛、正辛醛、苯甲醛、二苯甲酮等十余种醛的缩合反应。

The acetalization and ketalization of various aldehydes and ketones with glycerol by using KHSO4 as catalyst were studied. Effect of reaction time, mole ratio of reactants and amount of catalyst on yield of acetals were investigated.

研究了在KHSO4催化下，丙三醇与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正辛醛、二苯甲酮、苯甲醛等十余种醛的缩合反应。

The acetalization and ketalization of various aldehydes and ketones with glycols using FeCl3 as catalyst were studied. The effects of reaction time, mole ratio of reactants and amount of catalyst on the yield of acetals were investigated.

研究了在FeCl3催化下，乙二醇与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正辛醛、二苯甲酮、苯甲醛等十余种醛的缩合反应。

A novel route for synthesis of methyl acetoacetate from acetone and dimethyl carbonate over solid base catalysts was proposed.

以碳酸二甲酯与丙酮为原料，在固体碱上合成乙酰乙酸甲酯，并考察了反应温度、反应时间、催化剂用量和原料摩尔比等因素对反应结果的影响。

Any of three compounds (acetoacetic acid, acetone, and/or beta-hydroxybutyric acid) found in excess in blood and urine of persons with metabolic disorders.

三种化合物中任意一种（乙酰乙酸、丙酮和/或β羟基丁酸），人体的血液和尿中大量含有。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。