查询词典 acetic aldehyde

Thus, an aldohexose is a hexose that has an aldehyde group; a ketopentose is a pentose with a ketone group, etc.

因此，己醛糖是带有醛基的己糖；戊酮糖是带有酮基的戊糖，以此类推。

In this paper, three gene S-adenosylmethionine decarboxylase, ornithine aminotransferase and betaine aldehyde dehydrogenase plus one house-keeping gene had been cloned and their expression levels under different stresses were evaluated by real-time PCR technique.

已克隆S-腺苷蛋氨酸脱羧酶、鸟氨酸氨基转移酶、甜菜碱脱氢酶3个基因和内参基因的基础上，应用定量PCR技术，对这3个基因在不同胁迫时间下的表达水平进行分析。

Note the isosbestic point, indicating a direct reaction of protonated MDNPH with the aldehyde to the hydrazone.

看到色点，显示直接的反应与质子mdnph醛腙的。

Based on the absorption property of glyoxime which can be formed by addition reaction of aldehyde group and hydroxylamine in the UV-spectral region,spectrophotometric determination of glyoxal in glyoxal solution was proposed.

利用醛基与羟胺在酸性条件下的成肟反应产物乙二醛二肟对紫外光的吸收特性，用紫外分光光度法测定乙二醛的含量。

At present, the oxime is synthesized mainly by utilizing the reaction between hydroxylamine salt and ketone and aldehyde, and defects are the high dosage of hydroxylamine salt and the production of a large amount of byproduct.

目前，肟主要是利用羟胺盐和酮或醛的反应来合成，有两个缺点：(1)高的羟胺盐用量；(2)同时生成大量的副产物无机盐。

Because of the excessive contents of aldehyde and fusel oil in liquor, incoordinate acid ester proportion and unqualified sanitary conditions and applied flavors and alcohol quality, drinking might make people feel thirsty and dizzy.

引起白酒口干、上头的主要原因有酒中乙醛、杂醇油含量过高，酸酯比例不谐调，卫生指标、外加香料及酒精质量不过关等因素。

They can exist in a chain form or in a ring formed by reaction of the ketone or aldehyde group with an – OH group on one of the carbons at the other end of the chain.

它们有链式和环式。环式结构的形成是酮基或醛基与碳链另一端的羟基发生反应而相结合。

Sugar molecules consist of linked carbon atoms with – OH groups attached, and either an aldehyde or ketone group.

由携带羟基的一系列碳原子连接而成为骨架，再加上醛基或酮基构成了糖。

Schiff ' s reagent A reagent used to detect the presence of aldehyde and ketone groups in certain compounds.

Schiff 试剂：供检测特定化合物中是否有醛和酮类物质的一种试剂。

It is found that using salicylic aldehyde to block amino group,reactive dyeing and after treatment with 3g/L sulfuric acid at 40℃ for 20 minutes,chitin/cotton blended fabric features good levelness and litt.

该工艺可提高甲壳素/棉混纺织物的匀染性，且对抗菌性和皂洗牢度的影响小。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。