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However, the synthesis of circular nanostructures remains challenging due in large part to the difficulty in preparing functionalized cyclic polymers.4 Furthermore, reliance on macrocyclization routes to cyclic polymers restricts attachment of large side chains or dendrons to postpolymerization, and an efficient route to cyclic hybrid architectures of high purity is yet to be realized.

然而，由于合成功能化环状聚合物的难度很大，使得环状纳米结构的合成具有挑战性。4 另外，依赖于大环环合路线的环状聚合物受限于无法在后聚合过程中增加大型侧链或枝状体，同时目前也缺乏一种有效地获得高纯度环状混合结构的方法。

The unusual electronic transport properties of highly doped conjugated polymers have attracted a lot of attention in both theory and experiment, In the Part Ⅱ, we calculate the transmissivity, conductivity and the I-V curve for dimerized polymers with side chains attached randomly to the backbone.

并且层厚随机涨落的效应随着层数的增加而得到加强。但具有孤子形状的共振态始终存在于能隙中并在入射光强增加时形成双稳。

In addition,we give an explanation for the origin of the different conductive mechanisms in the insulating phase,i.e.,the variable range hopping originate from the energy gap produced by the dimerized Ir-Ir chains,while the thermal activation originate from the non-dimerized Ir.

另外，指出了CuIr_2S_4体系在低温绝缘相的导电机制，跃迁电导项来源于Ir-Ir二聚所产生的能隙，而热激活电导项来源于未二聚的Ir。

Now, doors and windows were thrown open, horses in their stables looked round over their shoulders at the light and freshness pouring in at doorways, leaves sparkled and rustled at iron-grated windows, dogs pulled hard at their chains, and reared impatient to be loosed.

门窗敞开了，厩里的马回头望着从门口泻进的光和清新绿叶在铁格花窗上闪着光，发出沙沙的声音狗使劲地扯着铁链，不耐烦地站立起来，想获得自由。

Excellent performance in the motorcycle chain lubrication and in high speed karts transmission chains.

在带掣子的摩托车及赛车的高速传动链要效果特别好。

The weak base anion exchange resin with covalent bond side chains which contain donator atom N offering unshared electron pairs, is able to form a coordinative covalent bond to heavy metal in which unsaturated vacant orbits exist in its electron shells.

在天然淡水水体的环境下，重金属被树脂吸附源于树脂胺基官能团上的N原子有孤对电子，水中所含重金属的价电子层有空轨道。

For the case of pH-induced micellization, as pH of the solutions decreases to below 4.6, micellar structure having insoluble complexes of PAA/PNiPAAm as the core and solvated HEC chains as the shell can be obtained due to hydrogen-bonding complexation between the proton-acceptors in PNiPAAm and the proton-donors in PAA.

首先发现pH诱导胶束形成的临界pH值在4.6附近，证实了胶束化机理是由于低pH下PAA接枝链上的质子给体与PNiPAAm支链上的质子受体间的氢键络合形成胶束的&核&，HEC不参与络合形成胶束的&壳&。

In passing we should note that cationic detergents with two long chains are often oil soluble, and are implicated in the formation of membrane pores.

过去认为带有两个长尾的阳离子表面活性剂溶于油，和细胞膜孔的形成有关，但是很少用于细胞破碎。

BERCO Undercarriage is the latest subsidiary of BERCO Group, registered in Shanghai Yangshan Free Trade Port in March 2008 with a registration capital of 2 million Euro, covers an area of more than 5,000M2 with functions of bonded warehouse, quality control and lab analysis, track chains and roller assembly.

伯尔克底盘贸易有限公司为蒂森克虏伯投资有限公司代表BERCO集团在中国投资设立的外商独资企业，成立于2008年3月，注册地在上海市洋山保税港区港茂路122号，注册资本200万欧元，现拥有保税仓储、质量检验和履带、轮子装配线等功能区域，总面积逾5000m2

This article applies emulsion polymerization to synthesize polyacrylate emulsion,with dyestuff bonded into polymer chains by the nucleon substitution between NH2 group in polyacrylamide monomers and the Cl group in dyestuff molecules to prepare colorful polyacrylate emulsion.

采用乳液聚合方法合成丙烯酸酯乳液后，通过用含有—NH2的单体与染料分子中的—C l进行亲核取代反应，通过化学反应直接将染料分子接到聚合物链中，得到彩色丙烯酸酯乳液。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。