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

  • Astm

    Astm

    ASTM develops technical standards for industry worldwide.

    http://Astm.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-09-20
  • Nap

    Nap

    The publisher for the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council. Thousands of books freely searchable online.

    http://Nap.edu/
    PageRank：
    AlexaRank：0
    Collection time：2025-10-31
  • Asq

    Asq

    The American Society for Quality (ASQ) is the world s leading authority on quality. With more than 100,000 individual and organizational members, this professional association advances learning, quality improvement, and knowledge exchange to improve business results, and to create better workplaces and communities worldwide.

    http://Asq.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-10-28
  • Blockr

    Blockr

    Detailed information about Bitcoin blockchain network, blocks, addresses, and transactions.

    http://Blockr.io/
    PageRank：
    AlexaRank：0
    Collection time：2025-09-20
  • Unitconversion

    Unitconversion

    Provides a free online conversion tool to easily convert between different units of measurement in more than 70 categories.

    http://Unitconversion.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-10-05
  • Defense

    Defense

    The official website with links to military and other resources supporting all branches of the military in all services.

    http://Defense.gov/
    PageRank：
    AlexaRank：0
    Collection time：2025-09-20
  • Nobelprize

    Nobelprize

    Official web site of the Nobel Foundation. Offers a biography of Alfred Nobel, information about the organization, and details of individuals who have received a Nobel Prize.

    http://Nobelprize.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-10-29
  • Nationaltrust

    Nationaltrust

    Brief histories and visitor information on over 300 historic buildings and gardens owned by the National Trust in England, Wales and Northern Ireland. Some photographs.

    http://Nationaltrust.org.uk/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
  • Meteo

    Meteo

    Current observations, local and global forecast maps, contacts and location. [English, Flemish, French, German]

    http://Meteo.be/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-03
  • Reprap

    Reprap

    Open source rapid prototyping system that is capable of producing its own parts and can therefore be replicated easily.

    http://Reprap.org/
    PageRank：
    AlexaRank：0
    Collection time：2025-11-01
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