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- Density Functional Theory, Cytosine, Tautomerism. 密度泛函理论;胞嘧啶;
- This is the large ring lactone class antibiotic. 本品为大环内酯类抗生素。
- A New Diterpene Lactone from the Soft Coral Sarcophyton molle Tix. Dur. 柔软肉芝软珊瑚中的新二萜内酯。
- Study on Extraction and Separation of Lactone for Coix Lachrymajobi L. 薏苡内酯的提取及分离纯化条件的研究。
- The machine can produce lactone tofu, peanuts, tofu, bean curd immortal. 该机可生产内脂豆腐，花生豆腐，神仙豆腐。
- Keywords IR spectroscopy;keto enol tautomerism;reaction mechanism; 红外光谱;互变异构;反应历程;
- This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction. 此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
- Metal salts and Carboxy, keto, aldehyde, acetoacetoxy, complexes phosphonic acid, imine, amino and thio. 金属盐类和羧基，酮，醛，乙酰乙酸，配合膦酸，亚胺，氨基酸和硫代。
- Cyclic carbonate, Amine aldehyde, keto, activated olefinic bond, N-alkoyl, acid, anydride, acid chloride, acetoacetoxy. 环碳酸酯，胺醛，酮，活性烯键的N alkoyl，酸，anydride，酰氯，乙酰乙酸。
- Keto-enol tautomerism is the most common tautomery phenomenon.Keto -enol themselves are the real chemical substance. 酮及烯醇互变是互变作用最普通的现象,它们都是真实的化学实体。
- "The keto form predominates in many aldehydes and ketones, the enol form in ph enol s. 在许多醛和酮中酮基都是最主要的组分。
- Principal constituent: Andrographis Paniculta lactone, clove oil and many kinds of sterilizations active factor. 主要成分：穿心莲内酯、丁香油和多种杀菌活性因子。
- "Constitutional isomers that can be readily converted from one to another are called tautomers (see tautomerism). 彼此间很容易相互转换的组成异构体称为互变异构体现象。
- Studies of the UV-VIS spectra of them in several acid solutions indicate the quinone-ammoni-um tautomerism. 在一定的酸性介质中，这类冠醚存在着铵琨互变异构，测定了它们在不同介质中的紫外-可见光谱，并对最大吸收峰进行归属。
- The paper introduces implication of grignard reagent and application in organic synthesis ,such as,synthesis of alcohol,aldehyde,keto,acid and alkane,etc. 本文介绍了格利雅试剂的含意,格利雅试剂在合成中的主要应用(如:合成醇、醛、酮、酸、烃等)。
- Immunoradioassay was used for the examination of brain cAMP, cGMP, TXB 2 and 6 keto PGF1a(metabolites of TXA 2 and PGI 2) contents. 各组到预定时间后 ,取脑组织匀浆 ,用放免进行环磷酸腺苷 (cAMP)、环磷酸鸟苷(cGMP)与TXB2 及 6 酮 (TXA2 、PGI2 稳定代谢产物 )含量测定 ,并对脑组织匀浆进行蛋白定量。
- It is used to shape the packaged liquid lactone tofu by means of heating and sterilize it by means of pasteurism. 设备简介：用于将封装完毕的液体内酯豆腐加热成型及巴氏灭菌。
- This is used to cool and shaped lactone tofu to make it taste smooth and tender and ready for freezing. 设备简介：用于内酯豆腐冷却，保持内酯豆腐的滑嫩口感并为冷藏保鲜做准备。
- Semiempirical MNDO ealculations were performed in order to study theformhydroxamic acid-formhydroximic acid tautomerism. 应用半经验MNDO方法研究了甲异羟肟酸与甲羟肟酸的互变异构平衡。
- The efectofaddition ofsom e m etalions and keto acids on L-m alic acid ferm entation by im m obilized Aspergillus flavus wasstudied. 研究了某些金属离子和酮酸对固定化黄曲霉发酵L-苹果酸的影响。
