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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  Istat

  Istituto Nazionale di Statistica, with some economic and social data in English, and more detailed information in Italian. Describes services and products available, as well as research projects and internal quality controls.

  http://Istat.it/
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  收录时间：2025-07-14
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  Chemguide

  Resource for A Level chemistry students.

  http://Chemguide.co.uk/
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  收录时间：2025-08-03
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  Mathgoodies

  Math Goodies is a free math help site that launched in 1998. Math Goodies was a pioneer of interactive math instruction and free math homework help. Today this award-winning site has over 500 pages of activities for students, educators and parents.

  http://Mathgoodies.com/
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  收录时间：2025-08-03
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  Edaboard

  International discussion forum on EDA, circuits, electronics design, service manuals and related subjects.

  http://Edaboard.com/
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  收录时间：2025-08-02
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  Eng-tips

  Provides links to technical support forums for a range of engineering professions.

  http://Eng-tips.com/
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  收录时间：2025-08-03
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  bitstamp

  An exchange based in Slovenia, where users can trade between Bitcoins and US Dollars.

  http://www.bitstamp.net/
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  收录时间：2025-08-01
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  Scienceblogs

  The largest conversation about science on the web.

  http://Scienceblogs.com/
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  收录时间：2025-08-03
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  Synopsys

  Synopsys is a world leader in electronic design automation (EDA), supplying the global electronics market with the software, IP and services used in semiconductor design and manufacturing. Synopsys' comprehensive, integrated portfolio of implementation, verification, IP, manufacturing and FPGA solutions helps address the key challenges designers and manufacturers face today, such as power and yield management, system-to-silicon verification and time-to-results. These technology-leading solutions help give Synopsys customers a competitive edge in bringing the best products to market quickly while reducing costs and schedule risk. Synopsys is headquartered in Mountain View, California, and has more than 60 offices located throughout North America, Europe, Japan, Asia and India.

  http://Synopsys.com/
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  收录时间：2025-08-03
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  Audubon

  The mission of the National Audubon Society is to conserve and restore natural ecosystems, focusing on birds and other wildlife for the benefit of humanity and the earth's biological diversity.

  http://Audubon.org/
  百度权重：
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  收录时间：2025-08-03
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  Iadb

  IDB was established in 1959 to help accelerate economic and social development in Latin America and the Caribbean.

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