• Keledge（Trial）

    Beijing Wanwu Keledge Tech.

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  • NSTL (National Science and Technology Library)

    The National Science and Technology Library (NSTL) has introduced over 30 specialized foreign academic society current journal databases with strong professional relevance but low domestic availabi

  • Oxford English Dictionary (OED) Online

    The Oxford English Dictionary Online offers users the most complete, up-to-date, and extensive dictionary from Oxford.

  • Science Journals（AAAS）

    Science has been at the center of important scientific discovery since its founding in 1880—with seed money from Thomas Alva Edison.

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    Web of Science is the world's most trusted, publisher-independent global citation database. Guided by the legacy of Dr.

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