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In this paper, two-step reaction are selected to synthesize three-pyrrole based BODIPY fluorescent dyes using simple pyrrole as starting material.

本文中采用两步式反应路线,由简单的吡咯为起始原料得到三吡咯骨架的BODIPIY荧光染料,讨论了可能的反应机理,并研究了化合物1和2的光谱性能及光稳定性。

In recent years, various skeletal derivatives have been synthesized with organic metals as catalysts, and different side-chain derivatives have been obtained with the reaction of pyrrolidine and hydrophobic functional groups.

近年来,采用有机金属催化合成骨架、四氢吡咯烷与疏水基团相连接合成侧链,取得了一定的进展。

Numerous quinoxaline derivatives have been prepared to get biologically active compounds, and the research continues to synthesize new compounds having unusual skeletons.

许多喹喔啉衍生物被认定具有生物活性,故不断地被研究以合成新的骨架

3 Line for urban rapid rail transit line of the basic skeleton.

1,2,3线城市快速轨道交通线路的基本骨架

Aimed at the characteristics such as heavy traffic,serious surcharge,a lot of long scarps,long term of high temperature,raininess and heavy fog in summer of Beijing-Zhuhai expressway in Gongdong Province,this paper,which adopts uniform design method with 16 levels and 4 factors,studies the relativity between coarse aggregate content and ,optimizes the mix of SMA mixture.

针对京珠高速公路粤境内北段交通量大、超载严重、长陡坡路段多、夏季高温多雨多雾等特点,采用16水平4因素的均匀设计法,研究了各档粗集料用量与骨架间隙率之间的相关性,优化了SAM矿料级配,并对SMA高温稳定性及影响因素进行了分析,且重点研究了粗集料用量、沥青用量、纤维品种等对SMA高温稳定性的影响。

On Sundays, she and an Indian student named Ammini Williams and a big, rawboned Irish girl named Josephine Collins would go rowing on Green Lake in the heart of the city, or attend the Gold Cup races on Lake Washington and watch the brightly colored hydroplanes flashing by.

星期天她和一个叫阿米妮·威廉姆斯的印第安学生以及一个骨架粗大而又瘦削的爱尔兰姑娘约瑟芬·柯林斯或去市中心的绿湖中泛舟;或去参加华盛顿湖上的竞舟金杯赛;或去观看五颜六色的水上飞机表演,它们不时在头顶掠过。

It is commonly thought that T-lymphocytes, a type of immune system cell, play a pivotal part in this process by over-activating osteoclasts, the bone cells that reabsorb bone material from the skeleton.

人们普遍认为, T淋巴细胞,一种免疫系统细胞,发挥举足轻重的一部分,在这个过程中过度激活破骨细胞,骨细胞reabsorb骨材料从骨架

The characteristic absorption spectrums of intracellular hemoglobin were detected and analyzed by ultraviolet spectrum scanning technique. The investigation indicated that complicated physiology regulates and controls process, such as red blood cell membrane elasticity deformation, Cyto-membrane liquid crystal state phase transition, the change of hemoglobin configuration, membrane cytoskeleton protein network reassembling or despiralization, and membrane surface electric charge density reapportion were directly influenced by the gentle changes of pH valve in autologous plasma environment. Further, the remarkable diversities of erythrocyte carrying-oxygen ability were appeared in the different pH conditions.

实验研究表明,红细胞弹性形变、细胞膜液晶态相变,胞内血红蛋白分子构型改变,膜骨架网络重新组装或解旋、以及膜表面电荷密度重新分配等复杂的生理调控过程与自体血浆环境中pH值的轻微波动直接相关,可能造成了不同pH条件中活性红细胞携氧能力显著不同。

The extent of the dendrite remelting can be described by the dimensionless superheating of the dendritic skeleton during recalescence.

重熔破坏趋势的大小可以用再辉时枝晶骨架的无量纲过热度来衡量。

Finished framework, roofing, walls, nterior decoration, hot water system and air conditioner system synchronously, no need to redecoration.

骨架、屋面、墙面及室内装修、热水系统、空调系统均可同步完成,无需二次装修。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。