查询词典 affords

The Diels-Alder cycloadditions of [60] fullerene for preparation of optical limitingmaterials are discussed in chapter 3 and 6. Soluble cycloaddition derivatives of 〓aresynthesized by the reaction of 〓 with indene,1,1'-biindene andcyclopentadiene derivatives.〓Particular, the Diels-Alder cycloaddition of 〓 with1,1'-biindene under controlled conditions affords the stable monoadduct 〓〓of novel structure, which was confirmed by HPLC, FTIR, FD-MS,〓NMR,〓 NMR, HMQC and HMBC spectra, Its two bridgehead cage carbons resonate at70.91ppm, The 〓 NMR spectra showed 38 lines consistent with the 〓 symmetryassociated with [6,6] addition. The 〓 shows similar optical limitingproperties to that of 〓 in toluene for 8ns laser at wave length 532nm. Moreover, thehigh solubility of this adduct in polar solvents such as THF, acetone enables itsincorporation into sol-gel glass matrix. The thin films prepared via the sol-gel methodshow improved OL behaviour compared to those of 〓. The langmuir-Blodgett filmformation and uv-visible absorption of 〓 are also investigated. LBmonolayer of this compound is prepared on the air-water interface at 〓 mol/l. In chapter 4, three water-soluble derivatives of [60] fullerene: fullerol(1), theaddition product (2)of fullerol (1)with polyvinylpyrrolidone and fumaric acidderivative of 〓(3) are synthesized and characterized.

通过Diels-Alder环加成反应，用茚〓和1，1'-联茚〓及取代茂合成了一系列可溶性的〓环加成衍生物，发现可控制反应条件，使1，1'-联茚与〓反应，并高产率地得到具有新颖结构的单加成物，用HPLC、FTIR、FD-MS 及〓、HMQC、HMBC等多种波谱技术对其结构进行表征，测得它的两个〓杂化的桥头碳的化学位移为〓ppm，证明生成的衍生物为6∶6闭式环加成，〓NMR谱中共给出38个信号，表明〓联茚衍生物分子具有〓对称性；在波长532nm，脉冲宽度8ns的激光下，〓联茚衍生物的甲苯溶液的光限幅性能与〓的甲苯溶液相近，由于〓联茚单加成衍生物熱稳定性好，在四氢呋喃，丙酮等极性溶剂中溶解性好，能分别均匀地掺入溶胶-凝胶中，已发现它的溶胶(so1)光限幅性能优于纯〓的光限幅性能；使用Langmuir-Blodgett技术将〓联茚衍生物在空气和水的界面进行了LB单层膜和多层膜实验以及UV-Vis吸收谱研究，通过等温压缩曲线测试，证明浓度为〓〓时，〓联茚衍生物能够形成单层膜。

And the stimulus it affords to the sense, and a sort of infinitude which it hath, like space and time, make all matter gay.

光线不但激活了感官，而且光线好似空间和时间，有着能把一切都覆盖的性质，所以任何东西只要在光明下都是赏心悦目的。

This page affords access to abstracts of articles of Volume 38 (2002), author index and keyword index.

从该网页可检索2002年38卷的文摘以及作者索引和关键词索引。

This essay reviews the historical evolution of tolerance,the features of the moden tolerance,the cost and limit of tolerance,the relation of to leranc and jurisprudence,then affords the experience and the base of thought for the jurisprudential course of to lerance.

本文考察宽容概念的历史演进、现代宽容的特点、宽容的成本和界限以及宽容与法理学的关系，为宽容问题的法理化提供经验和思想基础。

This article also affords amendment and interpretation to the viewpoints that network effect be equal with the common scale effect anciently through a new visual angle, and supplies a slip of new clew for lucubration in network industrial law of development and methods.

本文通过一个新的视角，对以往将网络型产业网络效应简单等同一般规模经济效应的观点给予了修正和解释，并为进一步深入研究网络型产业特征和发展规律提供新的思路。

Setting forth the realization method by hardware for searching minimal cutset of a graph with N-SearCut model. Then this method affords theory and practice fundament for solving this puzzle of searching for minimal cutset in reliability evaluation of power system.

提出了运用N-SearCut神经网络模型搜索图最小割集的全硬件实现方法，为更理想地解决网络可靠性评估中出现的最小割集搜索这一瓶颈问题提出了新的思路，提供了理论和实践依据。

Man is both creature and moulder of his environment, which gives him physical sustenance and affords him the opportunity for intellectual, moral, social and spiritual growth.

人类既是他的环境的创造物，又是他的环境的塑造者，环境给予人以维持生存的东西，并给他提供了在智力、道德、社会和精神等方面获得发展的机会。

In the next two sections, the new system of neighborhood governance, the shequ Residence Committees, is described. The authors argue that this new infrastructure of local governance affords a unique opportunity for a new approach to solving the critical urban problems of ecological sustainability, social inclusion, and quality of life at the neighborhood level.

接下来的两部分对邻里治理的新系统，即社区居民委员会进行了评述，作者认为这种新的地方自治基础设施对于解决上述生态可持续性、社会融合以及邻里尺度上的生活质量等问题提供了一种独特的机会。

The Manchester Ship Canal (completed in 1894) affords access for oceangoing vessels.

大曼彻斯特船运河 1894年竣工）使海船可直达此市。

A big picture window affords a colorful view of the side yard and serves as a perch for a papier-mache bird figure, crafted by Stray Dog Designs, as are the bright-pink floor lamp and other decor items sprinkled throughout the room.

大型的落地窗设计为人们看到庭院的侧面提供了一个有趣的视角，同时带有一些零星的鸟型纸图设计，还有明亮的粉红色落地灯设计和其他的装饰物品分散在整个房间中。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。