往复轴磁性液体密封机理及在车门密封中的应用研究

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1、北京交通大学硕士学位论文往复轴磁性液体密封机理及在车门密封中的应用研究姓名：王飚申请学位级别：硕士专业：机械工程指导教师：李德才20060301北方交通大学工程硕士专业学位论文ABSTRACTAIon窖withmed州elop呲毗Ofthenation叠l盹oⅡomy'Thelivinglevelinp印pIeincreasescondnuously，Therequ鹳tofp∞pIe2remo阼8ndmoreh培htoimportanlpileuprailmadpa鹳en2ercar，Thespeedofrail

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