查询词典 organic

A series of crosslinkable alternating polys containing pendant phenylethynyl groups were synthesized via aromatic nucleophilic substitution reaction. The resultant polymers show good solubility in ordinary organic solvents.

以耐高温高性能树脂-聚芳醚酮作为研究对象，从改善材料的加工工艺性及提高材料的使用温度出发，对含有苯乙炔基的交替共聚物进行了系统研究。

In the research period,the accumulation of organic matter and amelioration of soil physical properties were not improved.

因此，在该区植被恢复重建的生态系统应是在短期内具有经济效益的经营生态系统。

S. americana ingests the complex organic compounds and excretes hydrogen and other gases.

S。 americana 消化复杂的有机物和分泌氢及其它的气体。

The different effects of water-miscible organic solvents on the esterase and amidase activities of trypsin have been known for some time.

本文首次报道在单相共溶剂体系通过溶剂的疏水作用对木瓜蛋白酶的酰胺酶活性和酯酶活性进行调控。

It is existed competitiveness inhibition of 6APA, non-competitiveness inhibition of PAA and substrate inhibition of Penicillin on the hydrolysis of benzylpenicillin to 6APA and PAA by an immobilized penicillin amidase. The heat conductive coefficients were determined on the vacuum elevation liquid membrane concentration. The thermodynamics and kinetics of PAA extraction were studied on the organic solvent extraction of the above solution.

研究证明固定化青霉素酰化酶裂解反应是典型的底物、产物抑制酶反应，其反应动力学数据表明，青霉素、苯乙酸以及6APA对反应分别存在底物抑制、非竞争性抑制和竞争性抑制；真空升膜浓缩适应热敏性以及粘度不大的物系，对于6APA水溶液的真空升膜浓缩过程研究得到了浓缩实验的传热系数；浓缩液萃取主要是提取出其中的苯乙酸，本文测定了不同温度以及溶剂条件下的苯乙酸溶解度，并观测了苯乙酸萃取动力学。

The organic chemical product, the amide class chemical reagent design development and the service.

有机化工产品、酰胺类化学试剂的设计开发和服务。

A colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds.

乙酸的固体氨化物，无色，用作溶剂及合成有机化合物。

This paper reviews the recent progress of all kinds of reductive amination methods and their ap-plications in organic synthesis, particularly emphasis on the introduction to the reductive amination with high efficiency and high selectivity.

综述了近几年来各种还原胺化方法的研究进展及其在合成中的应用，尤其对高效和高选择性的还原胺化进行了重点介绍

It was found that this kind of porphyrin complexes could be effectively separated only with the mobile phase containing amine together with organic acid.

探讨了不同分离参数对它们色谱保留行为的影响发现：流动相中存在有机酸和胺类添加剂才能使四个稀土卟啉配合物有效分离。

One major source of odor is the organic amine cadaverine.

一个主要的气味来源是有机胺类一尸胺。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。