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1 Nano Reviews : Organizing Nanoscience and Nanotechnology for the Future 开放资源 专家推荐
  With the overriding aim of advancing technology and improving health care, Nano Reviews now publishes both spontaneously submitted and commissioned Research Communications, Review ...
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2 NASA Technical Reports Server 开放资源 馆员登记
  The NTRS is a valuable resource for researchers, students, educators, and the public to access NASA's current and historical technical literature and engineering results. Over 500,...
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3 National Academy of Sciences--reports and publications 开放资源 专家推荐
  罗列了美国国家科学院、国家工程院、医学协会等机构的论文/报告/PPT,新闻等,内容几乎涵盖所有学科。;...
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4 National Center for Health Statistics 开放资源 馆员登记
  the National Center for Health Statistics' website, a rich source of information about America's health. As the Nation's principal health statistics agency, we compile statistical ...
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5 National Geographic Magazine (USA) 开放资源 机器抓取
  Published by the National Geographic Society of United States, the National Geographic Magazine is a international famous journal on geography. The site provides contents of the jo...
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6 National Service Center for Environmental Publications 开放资源 馆员登记
  Site for free EPA print and digital documents ;...
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7 National Service Center for Environmental Publications (NSCEP) 开放资源 专家推荐
  NSCEP/NEPIS is the U.S. Environmental Protection Agency’s gateway to free digital and paper publications. More than 7,000 print publications are available through the National Serv...
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8 National Technical Information Service(NTIS) 开放资源 馆员登记
  The National Technical Information Service serves as the largest central resource for government-funded scientific, technical, engineering, and business related information availab...
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9 Natural Gas & Electricity 未开放资源 机器抓取
  Natural Gas & Electricity brings you insightful reporting on the industry's hottest topics, including internationalization, environmental concerns, price forecasts, financial techn...
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10 Natural Hazards 未开放资源 机器抓取
  Natural Hazards is devoted to original research work on all aspects of natural hazards, including the forecasting of catastrophic events, risk management, and the nature of precurs...
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