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检索条件"主题词=comparison,"
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comparison of the medical security system between the United Kingdom and China
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Chinese Medical Journal 2014年 第10期127卷 1977-1983页
作者: Shi Qiuyi Sun Zhaolin School of Medicine and Health Management Guiyang Medical University Guiyang Guizhou 550004 China Guizhou Provincial People's Hospital Guiyang Guizhou 550002China
In this day and age,few issues have aroused more bitter controversy than the one of how to keep the balance between fairness and cost-effectiveness in healthcare *** one hand,a well-designed healthcare system
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Performance comparison and parametric study on spiral groove gas film face seals
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Science China(Physics,Mechanics & Astronomy) 2004年 第Z1期47卷 29-36页
作者: LIU Yuchuan, SHEN Xinmin, XU Wanfu & WANG ZhiliState Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China Lubrication Technology Research Center, Shenyang Institute of Technology, Shenyang 110015, China Tsing Hua Univ State Key Lab Tribol Beijing 100084 Peoples R China Beijing Univ Aeronaut & Astronaut Sch Mech Engn & Automat Beijing 100083 Peoples R China Shenyang Inst Technol Lubricat Technol Res Ctr Shenyang 110015 Peoples R China
Several spiral groove gas film face seals (SGFS) with different layouts are compared quantitatively to analyze their merits and faults and application behaviors. In addition, a parametric study on downstream mode SGFS...
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论