曲酸是微生物利用淀粉糖原料好氧发酵产生的一种弱酸性化合物。
Kojic acid is a kind of weak acid chemical compound that was produces by microorganism that make fine oxygen ferment with the starch candy raw materials.
恒顺香醋乙酸乙酯萃取物具有弱自由基清除活性，主要清除活性成分为酚性和酸性化合物。
An ethyl acetate extract of Hengshun aromatic vinegar (he) exerted a weak radical scavenging activity, and the main components were phenolic and acidic compounds.
而如今，根据加州大学河滨分校的研究人员称，他们已经成功制造出了能像碱性物质般作用的酸性化合物。
Until now, according to researchers at the University of California-Riverside, who have successfully made acidic compounds act like bases.
酸性馏分均占总可溶性非烃馏分的47%以上，其中直链脂肪酸占气相色谱可检测总酸性化合物的96%以上。
The acidic fraction constitutes the main proportion of the oxygenated compounds(>47%), among which straight-chain fatty acids account for more than 96%.
考虑到酸性化合物和碱性化合物之间可能的相互作用，进行回收率实验时三个标准品被分别加入样品溶液中，并且将体积扩大了一倍。
Considering interaction between acidic and alkaline compounds, three standard markers were added respectively and the volume of sample solution was doubled in recovery experiments.
研究人员在石榴中发现了一种可抑制芳香酶活性的酸性化合物。芳香酶会把雄激素转换为雌激素，而雌激素会增加女性罹患乳腺癌的风险。
An acid found in pomegranates appears to block aromatase, an enzyme that converts androgen to estrogen - a hormone that plays a role in the development of breast cancer.
杂多化合物由于具有准液相和超强酸性的特征，广泛用于各种酯类反应。
Heteropoly compounds, with the properties of quasi-liquid and super acid, has been widely applied to ester reactions.
鱼腥味来自于胺类化合物。为什么加入柠檬汁（记得它是酸性的）后可以降低腥味，请提出你的看法。
The smell (and taste) of fish arises from amine compounds. Suggest a reason why adding lemon juice (which is acidic) reduces the "fishy" smell.
以1-庚烯为模型化合物，在小型固定流化床上研究了反应温度对汽油烯烃在酸性催化剂上反应的影响。
Effect of temperature on gasoline olefins cracking reaction over acid catalysts in fixed fluidized bed(FFB)reactor was studied and 1-heptene was used as model compound.
一种腐蚀性的酸性晶体化合物，NHCNH，可通过硫酸作用于氢氨化钙制取。
A caustic acidic crystalline compound, NHCNH, prepared by treating calcium cyanamide with sulfuric acid.
氨基氢：一种腐蚀性的酸性晶体化合物，NHCNH，可通过硫酸作用于氢氨化钙制取。
Cyanamidealsocyanamid: a caustic acidic crystalline compound, NHCNH, prepared by treating calcium cyanamide with sulfuric acid.
铌酸和含铌化合物独特酸性和热稳定性，广泛的应用催化领域中。
Niobic acid and compounds containing niobium are applied in a wide range of catalysis fields for their unique acidic property and thermal stability.
酸性组分主要由酚类化合物和有机羧酸组成。
The major components of acidic fraction are phenols and organic acids.
以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中的巯基杂环化合物和硫脲衍生物的含量。
Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.
作为一种憎水性极强的非离子型有机化合物，邻二氯苯在酸性或碱性条件下的吸附量显著增加，吸附取决于分配作用。
Being one of nonionic organic compounds with strong hydrophobicity, o-DCB adsorbed in soils intensified at acidic or alkaline conditions, indicating the partitioning effect played a key role.
重氮甲烷与酸性除草剂发生衍生反应，生成易于气相色谱-质谱测定的酯类化合物，反应条件温和，副产物少。
Under mild reaction condition, the derivative reaction of diazomethane with acid herbicides occurred and produced ester compounds with little by-products, which could be easily detected by GC-MS.
本发明以大环化合物修饰的石墨烯作为催化剂，应用于电池的酸性、中性和碱性条件下氧还原的催化。
The grapheme modified by a macrocyclic compound is used as the catalyst and is used for catalyzing the oxygen reduction of batteries under acidic, neutral and alkaline conditions.
四氢萘加氢裂化反应的关键步骤和双环化合物裂解的转化率以及单环化合物的产率与两种催化剂担体的酸性及反应温度有关。
The key steps of hydrocracking of tetralin, the conversion of double ring compounds and the yields of mono-ring compounds were affected by the reaction temperature and the acidity of two catalysts.
分析了酯类化合物的释酸机理，对几种酯类化合物的释酸情况及酸性染料染色的影响进行了探讨。
The mechanism of acid release of ester compounds was analyzed, and the acid release behaviors of some ester compounds and the influence to dyeing with weakly acid dyes were investigated.
本发明所提供的催化剂由金属改性后的沸石分子筛再经硅氧烷基化合物修饰表面酸性和孔结构得到；
The catalyst provided by the invention is obtained by the method that the surface acidity and the pore structure of a metal modified zeolite molecular sieve are decorated by siloxy group compound;
结果表明，苹果皮红色素在酸性条件下对高温、自然光、常见金属离子、碳水化合物和还原剂具有良好的稳定性。
The results indicated that such red pigment had favorable stability for high temperature, natural light, common metal ions, carbohydrates, and reducing agents in acidic conditions.
影响有机化合物酸性强弱的因素很多，本文仅以氢键对有机化合物酸性强弱的影响作了祥细的分析。
There are many factors to affect the strong or weak of acidness of organic compounds. The paper expresses the strong or weak influence of Hydrogen bond on acidness of organic compounds in detail.
影响有机化合物酸性强弱的因素很多，本文仅以氢键对有机化合物酸性强弱的影响作了祥细的分析。
There are many factors to affect the strong or weak of acidness of organic compounds. The paper expresses the strong or weak influence of Hydrogen bond on acidness of organic compounds in detail.
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