二分子的

Due to its linear chain structure, polyacrylamide, combined with DDA, tends to form the high molecular collector with more surface activities. In addition, with the high molecular weight, polyacrylamides (with the exception of hydroxamic acid polyacrylamide) can strongly flocculate kaolinite, which can increase the adsorptive density of collector and activate the kaolinite flotation.

由于分子的直链结构，聚丙烯酰胺药剂易与捕收剂十二胺形成表面活性更高的高分子捕收剂，同时由于聚丙烯酰胺具有较高的分子量，对高岭石显示很好的絮凝作用，增加了捕收剂的吸附密度，活化了高岭石的浮选。

Active sites of a certain concentration are distributed randomly over inactive sites, forming the model of two- dimensional lattice of active sites distribution. Diffusion, especially directional diffusion, of the adsorbed particles is taken into account on the basis of ZGB model.

模型假设，一定浓度的活性位随机分布在非活性位上，形成了活性位分布的二维格子模型反应器，并在ZGB模型的基础上，考虑了氧原子和CO分子的表面扩散，特别是引进了吸附粒子的定向表面扩散。

These two series of probes differ in their mechanism of action. The first series exploits the concept of suicide substrate. When the probe is hydrolyzed by the target sulfatase, it will release an intermediate that undergoes elimination to form a reactive quinone methide which in turn reacts with nearby nucleophiles. The second series belongs to an electrophilic reagent which utilizes a cyclic sulfamate moiety serving both as the recognition unit and the trapping device.

这二系列标示分子的主要差异在於其标示机制，第一系列是源自於自杀性受质的概念，利用水解后的中间体会生成高反应性的quinone methide，来达到标示的效果；第二系列则是属於亲核性试剂型，采用环状胺基磺酸衍生物做为辨识端及捕捉机制，预期在其进入酵素的受质结合区后能与酵素催化中心形成共价键结。

In chapter 5,thorough searches on the potential energy surfaces of 13 representative dipeptides are performed and structure characteristics of the stable conformers located were analyzed.

第5章中使用系统的构型寻找方法全面的研究了13种有代表性的二肽分子的势能面，并对所得到的稳定构型进行了结构特性的详细分析。

In chapter 6,thorough searches on the potential energy surfaces of 5 representative tripeptides are performed and structure characteristics of the stable conformers located were analyzed and compared with that of dipeptides.

第6章中使用系统的构型寻找方法全面的研究了5种有代表性的三肽分子的势能面，并详细分析了三肽构型的结构特点及其与二肽的差异。

The development of molecular-based therapies for the treatment of chronic hepatitis C virus infection is an area of intense clinical research, driven by the inability of the current standard of care, combination therapy with pegylated interferon alfa (PEG-IFNalpha) and ribavirin, to achieve a sustained virologic response in a large proportion of patients and by the lack of approved alternative therapies for PEG-IFNalpha/RBV nonresponders and relapsers.

目前慢性丙肝的标准治疗，聚乙二醇干扰素联合利巴韦林可以使大部分人群获得持续病毒学应答，但对无应答者和复发者缺乏获批准的治疗，这一现象驱动了基于分子的治疗发展成为临床研究方面热门领域。

A detailed analysis of the experimental results implied that the attractive forces play a main role in the collisional quenching processes of NCO by the quenchers studied in this work, and for some quenchers, the quenching of NCO is probably controlled by the entrance-channel and might be ascribed to the contribution of chemical reactions.

这一加成过程是一个入口势能面属于纯吸引型的无垒过程，故是NCO+O反应的主要通道。二是O原子攻击NCO分子的O原子得到中间物tran-NCOO，再通过C-O键的断裂生成产物CN+OO。该产物通道由于是吸热的，故很难发生。

Huijsmans algorithm for molecular space-filling model has been improved to be suitable for parallel implementation, and to make it possible to manipulate the model in real-time on PC.

负。己！性全，一砂二'J 分子的空间几何形状和它的性质有着极为密切的联系。

According to structure analysis, the contents of α-helix and dimer structure in refolded eMDH were increased by the cooperation, and eMDH activity was enhanced.

对复性产物结构的初步分析发现，耦合作用可使eMDH分子的α-螺旋及二聚体含量明显增多，因此复性产物的活性也显著提高。

There are two adsorption states of methanol on Lewis acid sites of the catalyst, i.

二甲醚的生成是分子吸附态甲醇与临近的解离吸附态甲醇相互作用的结果。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。