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METHODS Experimental arrhythmias were induced by strophanthin G infusion through jugular vein in guinea-pigs and by myocardial ischemia-reperfusion in rats respectively. Cytosolic calcium concentration [Ca(superscript 2+] of isolated guinea-pig ventricular myocytes was examined with laser confocal scanning microscope.

采用静脉灌流毒毛花苷G诱发豚鼠心律失常，心肌缺血再灌注诱发大鼠心律失常，观察双苯氟嗪的抗心律失常作用；利用激光共聚焦扫描显微镜观察双苯氟嗪对心室肌细胞内游离钙子浓度[Ca

Objective To evaluate costeffectiveness of gatifloxacin and levofloxacin hydrochloride injections in the treatment of urinary system infections ,in order to provide rational use of the drugs, and lower treatment cost.

作者：张剑聪，黎伟达，谭飞莉加替沙星；左氧氟沙星；泌尿系统感染；成本-效果分析［摘要］目的：评价加替沙星与盐酸左氧氟沙星注射剂治疗泌尿系统感染的成本-效果，促进合理用药，降低治疗费用。

The properties of methyl(3,3,3-trifluorpropyl)siloxane-dimethyl siloxane copolymer has been investigated in this paper.

摘要］ 研究了三氟丙基甲基硅氧烷/二甲基硅氧烷共聚物的性能，尤其是其低温特性，并与通用氟硅橡胶进行了对比。

By plasma polymrization and dynamic ion - beam mixed implantation methods, polyhexafluoropropene film and polytetra fluoroethylene film are prepared respectively. These films are coated on the external surfaces of brass and red copper tubes.

分别采用等离子体聚合技术和离子束动态混合注入技术在黄铜管和紫铜管表面制备了超薄聚六氟丙烯及四氟乙烯聚合物表面，实现了水蒸汽在常压下的滴状冷凝。

Optimum conditions are as follows: DMF is used as solvent, compound quaternary ammonium salt as catalyst, n(p-nitrochloro benzene):n=1: 1.2, m:m(p-nitrochloro benzene)=4%, m:m(p-nitrochloro benzene)1:1, and reacted under 155~160℃ for 18 h; reduction reaction is carried out in methanol with Raney nickel, which is used as catalyst; the raw product is added an antioxidant, and distilled simply under reduced pressure to obtain 4-fluoroaniline with excellence quality, purity is over 99.5%, total yield is 89.3%.

实验结果表明，氟化反应的最佳条件为：二甲基甲酰胺为溶剂、复合季铵盐为催化剂，n：n=1：1.2，m（催化剂：m=4%，m：m=1：1，于155~160℃下反应18h；还原反应在甲醇中进行，以阮内镍为催化剂；粗产品加入抗氧剂，减压条件下简单蒸馏得高品位的对氟苯胺。

The application prospects of fluorocarbon paint in the exterior heat-protective system and the development trends thereof are also described.

介绍了我国关于推广使用外保温技术的有关政策，我国氟碳涂料在外墙外保温体系的应用前景及今后氟碳涂料的发展方向。

Hexafluoropropene and its derivatives are mainly used in the field of fluorocarbon surfactantve and have a better forground.

六氟丙烯三聚体和其衍生物主要被用在氟碳表面活性剂领域，有较好的发展前景。

Although the company set up not long, but in the history of organic fluorine has been more than 20 years, particularly in the fluorocarbon surfactant production, application is successful.

公司虽然成立时间不长，但从事有机氟的研究历史已经有二十多年了，特别在氟碳表面活性剂生产、应用方面更是成绩斐然。

We further investigated the molecular mechanism of unusual superhydrophobicity of fluorocarbons.

和碳氢化合物相比，碳氟化合物的极性更强，和水的静电相互作用也更强，这使得碳氟化合物的超疏水性更加不同寻常。

Have carried on testing service for nearly 200 hazardous substances, including Asbestos, PAHs, Phthalates, NP/NPEO, AZO, CFC/HCFC/Halons, PVC, PCB, PCT, PCN, CP, Mirex, TPT/TBT/TBTO, Formaldehyde, Heavy metals, can help your products in fully compliance with 'green purchase' request of international buyers.

开展除RoHS以外的近200种有害物质检测业务，包括石棉、多环芳烃、邻苯二甲酸盐、壬基苯酚/壬基苯酚乙氧基化合物、偶氮染料、氟氯烷烃/氢氯氟烷烃/海龙、聚氯乙烯、多氯联苯、多氯三联苯、多氯化萘、短链氯化石蜡、灭蚊灵、三苯基锡类/三丁基锡类/二的氧化物、甲醛、重金属等，涉及范围完全满足各国际买家的&绿色采购&要求。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。