查询词典 sulphuric acid

Dihydroxybenzoic acid was prepared by carboxylation of resorcinol in solvent under under atmospheric pressure was studied.

研究了间苯二酚常压羧化法制备2，6-二羟基苯甲酸。

This paper mainly aims to investigate the 2,3-cresotic acid s composion by carboxylation and its pilot-plant test.

酚类的羧化反应早期常采用固相直接羧化法，70年代国外逐步改用溶剂悬浮羧化法。

Preferably the resin contains at least one acidic group and more preferably at least one carboxylic acid group.

最好的树脂至少包含一个酸性组和更多的最好至少一羧酸组。

NEW CARBOXYLIC ACID DERIVATIVES, THEIR PREPARATION AND THEIR USE

新的羧酸衍生物，其制备和应用

Building block of proteins; containing an amino group and a carboxylic acid group.

组成蛋白质的基本单位，含有一个氨基和一个羧酸基。

Fat A triglyceride of a long-chain carboxylic acid that is solid below 20℃.

脂肪：一种长链羧酸的甘油三酯，20℃以下为固态。

In alternate embodiments, a combination of mineral and organic carboxylic acids such as citric acid are employed.

在供选择的实施方案中，可以采用无机酸和有机羧酸如柠檬酸的组合物。

They are formed by a reaction of hydrogen peroxide and some compounds con- taining a carboxylic acid group.

他们是由一个过氧化氢和一些化合物CON组，泰宁羧酸基团反应。

An especially preferred metal chelating group is a carboxylic acid group.

一个特别的首选金属螯合组是羧酸组。

Amino acids Compounds containing both carboxylic acid and amino groups in their molecules.

氨基酸：在其分子中包含羧酸和氨基基团的化合物。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48