聚光的

In the thesis, the nonlinear optical properties and the thermochromism of the azobenzene functional polydiacetylenes were investigated detailedly.

本论文通过改变间隔基长度和偶氮苯环取代基以及连接方式的方法，将光响应性偶氮生色团引入聚二乙炔。

The rays go through a series of convolutions called the conoid of Sturm.Midway between the two focal lines , the rays form a circlecalled the circle of least confusion.

7光线经过一系列的聚散形成 Sturm 光锥，在两条焦线之间，光线形成一个圆斑，称为最小弥散圆。

At the same time, the diffract peaks of (110) and (006) crystal faces were also found when diffraction angle is about 65 degrees or 82 degrees.

采用 X光衍射法对糠醇树脂和聚苯胺树脂碳化产物的石墨化度和微观结构进行了研究。

1 Day after injury ruptured capillary could be seen in ganglion cell layer, 4 weeks after injury cells in each layer arranged sparsely and disorderedly, in some RGCs chromatin became dense, 8 weeks after injury the cells in each layer became fewer and large amount of RGCs without nucleus could be seen.

3光镜下伤后1 d视网膜神经节细胞层出血，伤后4周视网膜各层细胞稀疏、排列欠整齐，GCL散在核染色质浓集、边聚的节细胞，伤后8周视网膜各层细胞明显减少，GCL内大量空化节细胞。

In light and electronic microscopy, they appeared cell shrinkage, cell density increasing and eosinophilic, aggregation of cytoplasmic organelles, nucleolus fragmentation, and chromatin margination, condensation, and fragmentation. Those changes could be detected by TUNEL method.

在光镜和电镜下癌细胞凋亡表现为细胞体积缩小，胞浆浓缩嗜酸性，胞浆出泡、细胞器缩小或减少，核仁松解，染色质聚集、靠边、浓聚、断裂，在TUNEL法检测凋亡癌细胞时也可观察到相应的形态特点。

The title anti-fogging coating was prepared from film-forming substance such as UV curing of n-butyl methacrylate,β-hydroxy ethyl acrylate,acrylamide and sodium propenyl alkyl ether hydroxyl sulfonate,and proper solvents, crosslinker s,photoinitiators and additives.

以光敏丙烯酸酯低聚物、甲基丙烯酸丁酯、丙烯酸-β-羟乙酯、丙烯酰胺及丙烯基烷醚羟磺酸钠为主要成膜物质，再配以适量的溶剂、交联剂、光敏剂及各种助剂制成UV固化防雾涂料。

R-1,c-2, t-3, t-4-1,3-bis(4-biphenyl)-2,4-di(4-pyridyl)cyclobutane was obtained in diluted sulfuric acid by photodimerization reaction.

通过反-1-(4-联苯基)-2-(4-吡啶基)乙烯在稀硫酸中的光二聚反应合成了r-1，c-2，t-3，t-4-1，3-双(4-联苯基)-2，4-二(4-吡啶基)环丁烷。

They have never been, nor will ever be, possessed of any weight, though it be to the extent of a grain of mustard seed.... Erelong these outward trappings, these heaped-up treasures, these earthly vanities, these amassed battalions, this gorgeous finery, these proud and overweening souls—all shall pass into the confines of the grave, as though into that box.

它们从未且永远不会具有真正的价值，甚至连草芥都不如……不会过多久，这些外在之浮华，这些敛聚之财富，这些俗世之虚荣，这些征集之军队，这些光鲜之华服，这些傲慢且自负之灵魂——一切之一切，终将归于坟墓，恰如装进盒子那般。

METHODS: The rats in the two groups were anaesthetized by intraperitoneal injection of 10 g/L urethane (1 g/kg) and the chest was opened to insert a tube into the ascending aorta for perfusion with 200 mL of the mixture containing glutaric dialdehyde and paraformaldehyde for fixation.

两组大鼠给予质量浓度为10 g/L的乌拉坦1 g/kg腹腔内注射，麻醉后开胸，升主动脉插管，戊二醛与多聚甲醛混合固定液200 mL灌流固定，取嗅球，振荡切片，锇酸后固定，平板包埋，光镜下选取嗅球各层，制备超薄切片，透射电镜下对比观察。

Two azobenzene-containing polyethers were synthesized and their thermotropic liquid crystalline properties were investigated.

氯乙基缩水甘油醚和GCE/羟丁基乙烯基醚分别通过阳离子聚合、光引发共聚合，获得两种聚醚，然后再分别与 4-硝基-4' -羟基偶氮苯反应，制备了两种侧链含偶氮苯生色团的液晶聚合物。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。