修饰

The Chlorohydrin process produces large amount of wastewater, which results in serious equipment corrosion and environmental pollution.

在修饰的银催化剂上可获得一定的环氧选择性，特别是发现一些经过特殊方法制备的铜催化剂显示丙烯环氧化活性和选择性。

The influences of different surfactants (sodium dodecyl sulfate, sodium cholate and sodium deoxycholate), different electrolytes (sodium phosphate monobasic, sodium tetraborate and 3-cyclohexylamino-1-propane sulfonic acid), buffer pH and organic modifiers on the determination of sialic acid were studied.

其次建立了一种测定唾液酸的在线富集CZE法，该方法用40 mM磷酸二氢钠为缓冲溶液电解质，通过将样品溶解在乙腈：水=2：1的样品基体中，进样时间增加到100 s来达到样品富集的效果，并考察了样品基体中乙腈浓度和进样时间对富集效果的影响，研究了用硼砂或3-环己胺-1-丙烷磺酸作为电解质、缓冲溶液pH值和有机修饰剂的加入对唾液酸检测的影响。

It has recently reported that chromatin modification plays an important role in regulation of gene expression.

近年研究发现，染色质修饰在基因表达调节中起重要作用。

Chromatin immunoprecipitation is the technique of choice to study the relationship between histone modifications and gene expression.

染色质免疫沉淀是研究组蛋白修饰和基因表达间关系的精选的技术。

And, with the added epithet , II Chron.

3 ，并与增加修饰语，二专栏。

First, the CVFF force field was used to build the three dimensional structures of hydrophilization-modified trypsin andα-chymotrypsin based on the crystal structures of native trypsin and αchymotrypsin.

首先，从天然胰蛋白酶和α-胰乳蛋白酶的晶体结构出发，运用CVFF力场，对修饰前后酶分子空间结构进行合理建模。

This paper is focused on the preparation, characterization of metal clusters and theircatalytic performance in the enantioselective as well as stereoselective hydrogenations. It iscomposed of the five parts as follows: Chapter 1 A review was given on the two most studied enantioselective systems—Ni/TA and Pt/cinchona system, including some recent progress.

本论文研究了铂、铱纳米金属簇在α-酮酯、α-二酮不对称氢化中的催化性能及金属离子在α-二酮立体选择性氢化中的修饰作用，主要分为以下几部分：第一章对多相不对称催化体系一Ni／TA和Pt／cinchona及其一些最新进展作了较系统的评述；同时简要介绍了纳米金属簇的特性及其在催化中的一些应用。

The Pt/FDU-14 catalysts can be effectively applied in the asymmetric hydrogenation of ethyl pyruvate after chirally modified with cinchonidine.

考察了经过手性分子辛可尼定修饰后的Pt/FDU-14催化剂在丙酮酸乙酯不对称氢化反应中的催化性能。

Most interestingly, these modifications seem to act in concert and are associated with the circadian metabolic rhythm of cells.

最有趣的是，这些修饰似乎协调行动，并和细胞的昼夜代谢节律相关。

Accents Circumflex and Tilde are not used, as they are often much bigger than the spacing modifier accents.

口音旋和波形不被用来作为他们往往远远大于间距修饰的口音。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！