In present study , single fibre recording in vivo from dorsal root on chronically compressed drg model was used . we analyzed the characters of isi series of oscillation firing of type a neurons induced by veratridine , an inhibitor of inactivation gate of sodium channel . so we can establish a basis for understanding the relationship between the inactivation gate of sodium channel and the firing pattern , so as to explore the relationship between the firing pattern and pain 本研究在大鼠背根节慢性压迫模型上，利用在体单纤维记录方法，观察与分析na通道失活门抑制剂藜芦碱引起受损背根节a类神经元放电isi序列发生的变化特征，为了解na通道失活门与放电型式的关系以及进一步探索放电时间型式与疼痛的关系奠定基础。
Foot and mouth disease ( fmd ) is a highly contagious disease of cloven - hoofed animals , notably cattle , pigs , and sheep . presence of fmd in a country severely limits its trade in animals and animals products due to international regulations designed to limit spread of the disease 口蹄疫是多种偶蹄动物(包括家畜和野生动物)的高度接触性病毒传染病，被国际兽疫局列为a类传染病之首，其感染动物后的主要危害是使家畜生产力下降和种畜经济价值丧失，对畜产品出口贸易造成严重影响。
The company has devoted , since its inception , to a steady and healthy development mode and is the first of this kind in fuzhou region which products were tested qualified , in accordance with the state quality supervision center of fireproof construction materials gb 86241997 graded methods of inflammation of construction materials , by the zhejiang provincial firefighting brigade . its inflammation meets all standards inscribed in gb 86241997 class a non - flammable and ga 160 - 1997 non - flammable inorganic compound board . fuhong class a inorganic dampproof fireproof board is a kind of novel hi - tech board , a class decoration requirement of the gb 6566 - 2001 standard of state environment protection administration environment protection building material technology requiremen symbolizing your distinguished status and an ideal guarantee of your elegant life 我司致力于稳健发展，产品为福建省福州地区第一家经省消防总队抽样，通过“国家防火建筑材料质量监督检验中心”按强制性国家标准gb 86241997建筑材料燃烧性能分级方法进行防火安全性能型式检验，其燃烧性能达到gb 86241997规定的a级不燃性及ga 160 - 1997不燃性无机复合板全项性能合格,并同时通过国家环境保护总局绿色环保建材技术要求之gb 6566 - 2001标准的a类装修材料要求。
The direct target of this movie will describe various related international movie festivals , including the selected participation of international “ a ” movies slotted for screening , such as venice international film festival or berlin international film festival , and the swiss lacamo film festival or tokyo international film festival 本片的直接目标，将描述各类相关的国际电影节，其中包括影片预期上映档期时的国际a类电影节的选择参与，如威尼斯国际电影节或柏林国际电影节，以及瑞士卢卡诺电影节或东京国际电影节。
In terms of content , those supporting legislating on article 23 or proposals in the consultation document were classified as category a ; those opposing legislating or the proposals as category b ; and those without explicit views supporting or opposing legislating or the proposals as category c . in terms of format , the four categories were : submissions from organizations , submissions from individuals , submissions in the form of standard letters or pre - printed opinion forms , and signature forms 政府先按意见书的形式分成四类，分别是：团体的意见书个人的意见书内容划一的信件或预先印制的意见表格和签名表格。就关键的立场，政府又把意见书分成三类，即a类为赞成就基本法第23条立法或赞成谘询文件的建议b类为反对立法或建议c类为不能辨别立场者。
The group ' s dg chemical working area , tou branch company has 7 chemical storage tanks with a total volume of 9900 cbm ( 2x2000 cbm , 1x1500 cbm , 2x1200 cbm , 2x100 cbm ) . it was open in 1998 and honored with a level opening port in the year 2004 . it has loading and discharging dg chemistries such as sulfur , phenol , petrol , diesed and other dg cargos 集团危险化学品作业区?头分公司拥有化工品储罐7座，总容积达9900立方米（其中2000立方米储罐2个； 1500立方米储罐2个） ，与1998年对外开放， 2004年被授予国家a类开放口岸，可装卸硫磺、苯酚、甲苯、醋酸乙酯、乙酸乙烯酯、环乙酮、甲醛、乙二醇、甲醇、丙醇、汽油、柴油、溶剂油等十多种危险化学品。
This paper stems from the project of national high technology research and development program of china ( type a ) , named " research faced to computer aided definition design about product innovation " ( no . 2002aa411110 ) and " research on key technology of 3d digital customized design of information domestic appliances " ( no . 2002aa411120 ) . the paper analyzes the information needed by designers in ergonomics design process , constructing an information system frame on ergonomics design field on the basis or principles of information system , theories of ergonomics design and network - based database technology 论文课题来源于国家863计划a类项目? ? 《面向产品创新的计算机辅助概念设计技术的研究》 ( no . 2002aa411110 )和《面向信息家电的三维数字化定制设计关键技术研究》 ( no . 2002aa411120 )以分析工业产品人机工程设计过程中所需要的信息资源为出发点，在深入研究信息系统原理，人机工程设计理论知识和网络数据库技术的基础上，运用软件工程和结构化分析方法建立了一种人机工程设计的信息系统框架。
Through the design the dc feed network , input matching network for the ne900175 gaas fet and analysis the stabilization , power gain , bandwidth of the power amplifier we get the power amplifier is stability , the power gain is 11 . 967db and the bandwidth is 300mhz . microstrip antenna has a narrow bandwidth , in this design antenna ' s bandwidth is 100mhz . antenna is the not only the load of the power amplifier , but also as the filter connecting to the output of the power amplifier E类功放的pae相对a类、 b类、 ab类的功率放大器类型而言比较高，在50 ? 70 。分析了e类功放的工作过程后，以ne900175的gaas场效应管作为e类功放电路的开关，进行了外围电路的设计，包括直流偏置电路、输入匹配网络的设计，功放的稳定性、带宽、增益的分析。该功放增益最大达到11 . 4db ,带宽为320mhz 。
