查询词典 Lewis

Solid acid-base catalysts instead of liquid Bronsted and Lewis acid/base catalysts is one of the most important ways with the direction of the development of green chemistry.

而用固体酸碱代替液体酸碱催化有机反应是实现环境友好的一条重要途径，符合绿色化学的发展方向。

silicon-based Lewis acid ; development ; synthesis ; application

含硅路易斯酸；发展；合成；应用

The incorporation of titanium into the silica framework provoked mainly a proportional increase of Lewis acid sites.

钛的并网到硅土框架里挑衅了路易斯酸站点主要比例增量。

AlEt〓/THF served as both Lewis acid and reducing agent in this reaction.

而且，AlEt〓在该反应中既是路易斯酸，又是还原剂。

Both the amounts of Bronsted and Lewis acid on phosphate-modified MCM-49 were decreased.

在实验条件下， MCM-49分子筛的丙烯转化率为99.6%，异丙苯选择性为75.3%。

Recent progress in the applications of non-enzymatic system about Lewis acid and base tokinetic resolution reactions of racemes is reviewed.

本文讨论了路易斯酸及路易斯碱催化体系在外消旋体动力学拆分反应中应用的最新进展。

The catalytic systems of Lewis acid and base are useful ways in the non-enzymatic catalysis.

在非酶催化反应中，路易斯酸碱催化是比较常用的方法，它们被广泛地用于多种外消旋体的动力学拆分反应中，目前在该领域取得了很大的进展。

His predecessor , Kenneth Lewis, typically received a base salary of $1.5 million.

其前任刘易斯通常的底薪为150万美元。

Mr. Lewis' base salary for 2009 is $1.5 million.

刘易斯2009年的基本工资是150万美元。

The cat-alytic systems of Lewis acid and base are useful ways in the non-enzymatic catalysis. They were widely used to different kinds of kinetic resolution reactions. At present, mighty advances have been made in the field.

在非酶催化反应中，路易斯酸碱催化是比较常用的方法，它们被广泛地用于多种外消旋体的动力学拆分反应中，目前在该领域取得了很大的进展。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。