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

  • SpaceX

    SpaceX

    SpaceX designs, manufactures and launches advanced rockets and spacecraft. The company was founded in 2002 to revolutionize space technology, with the ultimate goal of enabling people to live on other planets.

    http://www.spacex.com/
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    AlexaRank：0
    Collection time：2025-11-11
  • Arkive

    Arkive

    An extensive collection of thousands of videos, images and fact-files illustrating the world's species gathered into one centralised digital library.

    http://Arkive.org/
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    AlexaRank：0
    Collection time：2025-11-03
  • Earthobservatory

    Earthobservatory

    Explore the causes and effects of climatic and environmental change through the use of real satellite data.

    http://Earthobservatory.nasa.gov/
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    AlexaRank：0
    Collection time：2025-11-03
  • Truity

    Truity

    Offers descriptions of each of the 16 MBTI (tm) types, including both written material and video footage. Free and for fee testing services are available.

    http://Truity.com/
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    AlexaRank：0
    Collection time：2025-11-03
  • Thatquiz

    Thatquiz

    Free math practice and testing site for students with complete class record keeping and grading for teachers.

    http://Thatquiz.org/
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    AlexaRank：0
    Collection time：2025-11-04
  • Mylanguageexchange

    Mylanguageexchange

    Language exchange learning via pen pals, text chat and voice chat using free lesson plans.

    http://Mylanguageexchange.com/
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    AlexaRank：0
    Collection time：2025-11-02
  • Cadence

    Cadence

    Provides front-to-back design tools and services for all aspects of semiconductor design.

    http://Cadence.com/
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    AlexaRank：0
    Collection time：2025-11-03
  • Binaryhexconverter

    Binaryhexconverter

    Online tool for converting binary, decimal, hexadecimal and ASCII text.

    http://Binaryhexconverter.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
  • Mt

    Mt

    Precision balances and scales, manufactures and markets related analytical instruments.

    http://Mt.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-02
  • Illumina

    Illumina

    Develops tools for the large-scale analysis of genetic variation and function. Products, biographies, careers, and contacts.

    http://Illumina.com/
    PageRank：
    AlexaRank：0
    Collection time：2025-10-31
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