The single layer films are physically mixed and prepared by polychloroprene and ferrite 94rc . one is synthesized in a lump , the maximal value of its inverse absorption is 12 . 88db but the obverse is 8 . 54db at 6 . 79ghz ; the absorption band of its inverse is wider than another side . the other films are made by quartic equal steps , the absorption of its obverse and inverse have not too much differences , the peak value is 10db at 14 . 4ghz 吸波性能测试表明一次注模所制薄膜其反面在8 . 88ghz时有最大衰减12 . 88db ,而正面在6 . 79ghz时有最大衰减8 . 54db ,反面的吸波频带也比正面宽;而四次注模所制薄膜其吸波性能在正反两面的吸收频带和强度基本一致,在14 . 4ghz时达到10db左右。
On the theoretical plane , the paper argues that electronic commerce is the prerequisite for the achievement of the chain operation benefit of supermarket ; on the realistic place , it introduces the employment of electronic commerce in the usa ' s wal - mart , japan ' s 7 - 11 and kmart , and beijing ' s fuxing trading center . on one hand , the paper illustrates the importance of electronic commerce to chain supermarkets from both the positive and negative aspects ; on the other hand , it analyses the employment modes of electronic commerce in the chain supermarkets in both china and some foreign countries , and deplores the modes of electronic commerce suited china ' s situation ; in the third part , it puts forward three employment modes of electronic commerce for china ' s chain supermarkets , namely , business to business ( b to b ) , enterprise intranet ( intranet ) and business to customer ( b to c ) 文章在理论方面论述了电子商务是实现超市连锁经营优势的必要条件；在实践应用方面通过介绍美国沃尔玛、日本7 - 11 、凯玛特以及我国北京复兴商业城电子商务的应用，一方面从正反两面说明电子商务对连锁超市的重要性，另一方面对国内外连锁超市的电子商务应用模式加以分析比较，探索适合我国国情的电子商务模式；本文的第三部分提出我国连锁超市电子商务的企业对企业( btob ) 、企业内部网( intranet )和企业对消费者( btoc )三种模式。
The issue has been discussed according to two clues : china ' s enterprise finance in the international security market and foreign enterprise finance in the china ' s security market in the chapter 5 , the historical background and process of the liberalization on capital items has been discussed and the merit and demerit of security investment opening has been discussed 第四章中国证券市场融资开放，分别按照中资企业在海外金融市场融资和外资企业在国内证券市场融资两条线索展开。第五章中国证券市场投资开放。在这个部分，笔者通过对资本账户开放的历史背景发及其展状况的回顾，总结证券市场投资开放正反两面的经验。
At the same time i also did many primary experments on separator and these polymer membrane can be used in as soft packaging li - ion battery ’ s separator . used polyvinylidene fluoride ( pvdf ) as the basic material , added cotton fibre and starch in , cooked with 100 in boiling water afer 3 hours , the starch inflate , and then acquire porous polymer membrane . in the process of coating polyester film , copper foil and aluminum boil were used to as carrier , 选用的基体材料为pvdf ,同时向其中添加棉纤维和淀粉,最后利用100沸水对隔膜进行3小时蒸煮处理使淀粉溶胀,从而达到造孔的目的。在涂布工艺的筛选中,通过对麦腊片、铜箔、铝箔进行筛选,最后选定以铜箔为载体来进行涂布处理。当以铜箔为载体时,可以使隔膜正反两面物理性质达到基本一致。
There are positive opinions and negative ones about what weather christmas will harms the traditional culture of china ; look around the bonhomie in shanghai , however , and the excitement of the public of welcoming to christmas day , it just let everyone find a chance to meet together , and don ' t take the culture matter too serious 到底过圣诞节，是不是会侵害传统的中国文化，正反两面说法是公说公有理，婆说婆有理；不过看看上海街头热闹的气氛，以及民众等著迎接假期的兴奋心情；其实，过节嘛，不就是大家找个机会聚在一起联络感情，好像没有这麽严重。
