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1 Aberystwyth University Repository (CADAIR) 开放资源 机器抓取
  This site is a university repository providing access to the publication output of the institution. The site interface is presented in English and Welsh. Registered users can set u...
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2 Academic Bibliography and Institutional Archive of Ghent University 开放资源 机器抓取
  This site is a university repository providing access to the publication output of the institution.Some items are not available as full-text. The site interface is in English. Regi...
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3 Academic Commons 开放资源 机器抓取
  This site provides access to the research output of the institution. Some items are not available as full-text, other provide a link to the thesis on ProQuest. Replaces DigitalComm...
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4 Agriculture and Environment Resources 开放资源 机器抓取
  Set of links to agriculture and environment resources. Includes the National Dairy Database and USDA Food Composition.It also contains College of Agriculture and Natural Resources,...
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5 Agriculture, Ecosystems & Environment 未开放资源 机器抓取
  《农业、生态系统与环境》是Elsevier公司出版的国际著名的地球科学专业期刊,刊登论文的主题涉及农业、事物产品、农业森林学、生态学、环境科学及地球与资源管理等。 网站免费提供该刊1983年第9卷至今的目次和文摘,全文则仅限授权用户在线使用。 ;Agriculture, Ecosystems & Environment publishes scientifi...
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6 Air Quality Meteorology Course 开放资源 机器抓取
  This site provides an online course which introduce the basic concepts of meteorology and air quality necessary to understand meteorological computer models. The course assumes the...
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7 AllConferences.Com -- Science Conferences 开放资源 机器抓取
  It is part of the site of AllConferences.Com. AllConferences.Com is a searchable directory focusing on conferences, conventions, trade shows, exhibits, workshops, events and busine...
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8 Allen Press--Journals 未开放资源 馆员登记
  Since 1996 Allen Press has dedicated itself to publishing the highest-quality scholarly journals for our society partners. Allen Press is proud to co-publish peer-reviewed journals...
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9 Alternatives 开放资源 机器抓取
  Alternatives Journal is an independent Canadian environmental magazine that has been published since 1971. Its aim is to promote understanding and dialogue among scholars, professi...
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10 American Field Guide 开放资源 机器抓取
  Produced by Oregon Public Broadcasting, this resource offers recasted outdoors programming content from nearly 30 TV stations across the United States. Joining highly produced vide...
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