查询词典 tartaric acid

Due to the higher acidity of the TFM carboxylic acid, the degree of ionization will be high at all of the pH values studied.

由于TFM羧酸的强酸性，其离子化的程度是所有研究物中pH值最高的。

The disadvantages of conventional soaps can be avoided by replacing the carboxylic acid group with a sulfate.

可通过将肥皂的羧基用硫酸盐代替来改变传统肥皂的缺点。

In this paper, the direct esterification of carboxylic acid and alcohol by using dealuminated USY as catalyst was studied.

研究脱铝USY 催化羧酸与醇的直接酯化反应，考察了催化剂硅铝比对酯化反应的影响及不同类型酸酶酯化的一般规律。

No carboxylic acid was detected under the experimental conditions.

在实验条件范围内未检测到羧酸副产物。

Activaed organic substrate react with carbon dioxide,which can be changed carboxylic acid in the way.

合成了二苯乙二酮缩双苯胺锰的配合物，研究了其对CO2的固定及催化CO2同有机底物反应。

Process of aluminium hard anodizing in solut io n of composite carboxylic acid with strong current density was developed.

开发出铝在复合有机羧酸中的大电流硬质阳极氧化工艺。

It is found that glassy carbon electrode modified with carboxylic acid group by carbon nanotube functionalized had more sensitivity in adsorption of lead.

试验发现，用羧基化的破纳米管修饰的玻碳电极作为工作电极，对铅离子吸附的灵敏度较高。

For instance, more than 20 herbal medicines contain aristolochic acid, a well-known nephrotoxin and potential carcinogen.

例如，20多种中草药含有马兜铃酸，这是已知的一种肾毒性毒素和可能的致癌物。

The results were as follows, low selenium enhanced content of soluble sugar and amino acid in Cardamine violifolia and Cabbage under 4℃.

结果显示，在4℃条件下，低质量分数的硒增加了白菜和堇叶碎米荠可溶性糖、游离氨基酸的含量。

From the dehydration of acetic acid in industry, novel membranes used for this purpose were prepared by modifying Cardo polyetherketone (which is solvent resistance and hydrophobic) for the first time.

基于醋酸脱水的重要的工业意义，本论文首次以耐化学溶剂性能优异的亲油性材料酚酞侧基聚醚酮为膜材料，通过对其进行改性，制备醋酸渗透蒸发脱水膜。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。