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科学 Website Directory　/　This website directory includes a total of235An excellent website

  • Adsabs.harvard

    Adsabs.harvard

    Search system for abstracts in astrophysics, planetary sciences and solar physics.

    http://Adsabs.harvard.edu/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-01
  • Pubchem.ncbi.nlm.nih

    Pubchem.ncbi.nlm.nih

    Free database of chemical structures of small organic molecules and information on their biological activities. Linked with NIH PubMed/Entrez information retrieval system.

    http://Pubchem.ncbi.nlm.nih.gov/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-02
  • Mathforum

    Mathforum

    Features combined archive and portal to web resources, educational issues, help forums, mailing lists, and teaching materials.

    http://Mathforum.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-02
  • Studyspanish

    Studyspanish

    Learn Spanish online. Free tutorial with audio, cultural notes, a random idiom generator, a list of Spanish schools, and links to other helpful sites.

    http://Studyspanish.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
  • Xilinx

    Xilinx

    Manufactures a 10 Gbps SERDES aimed at the SONET and Ethernet markets, in addition to their programmable logic line.

    http://Xilinx.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
  • Statcan.gc

    Statcan.gc

    Provides economic, social and census data, related publications, news, and education resources.

    http://Statcan.gc.ca/
    PageRank：
    AlexaRank：0
    Collection time：2025-09-20
  • Sciencebuddies

    Sciencebuddies

    Topic Selection Wizard helps students pick a project topic. Experienced scientists answer student questions in an online forum. Step-by-step project help guide.

    http://Sciencebuddies.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-01
  • Math

    Math

    Homework help, tutoring, and formulas.

    http://Math.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
  • Simplypsychology

    Simplypsychology

    Psychology articles and resources targeted at A-level and degree students.

    http://Simplypsychology.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-10-29
  • Mdpi

    Mdpi

    MDPI has been publishing scholarly, peer-reviewed open access journals since 1996. Searchable by title, author and article type.

    http://Mdpi.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
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