科学网站目录　/　此网站目录下共收录234个优秀网站

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  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/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-03
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  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/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-07-27
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  Blockr

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

  http://Blockr.io/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-07-31
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  Unitconversion

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

  http://Unitconversion.org/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-01
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  Defense

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

  http://Defense.gov/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-07-14
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  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/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-01
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  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/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-05
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  Meteo

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

  http://Meteo.be/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-04
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  Reprap

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

  http://Reprap.org/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-03
• 

  bitpay

  A Bitcoin payment processor. Description of services and prices.

  http://bitpay.com/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-05