国外网站网站目录　/　此网站目录下共收录5290个优秀网站

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  Thatquiz

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

  http://Thatquiz.org/
  百度权重：
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  AlexaRank：0
  收录时间：2025-08-19
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  Mylanguageexchange

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

  http://Mylanguageexchange.com/
  百度权重：
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  AlexaRank：0
  收录时间：2025-08-19
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  Cadence

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

  http://Cadence.com/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-19
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  Binaryhexconverter

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

  http://Binaryhexconverter.com/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-19
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  Mt

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

  http://Mt.com/
  百度权重：
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  AlexaRank：0
  收录时间：2025-08-19
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  Illumina

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

  http://Illumina.com/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-19
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  Bio-rad

  Manufactures and distributes products for a wide range of technologies including proteomics, real time PCR, electrophoresis, imaging, immunoassay, chromatography, microbiology, amplification, clinical informatics, microplate automation, immunofluorescence, molecular and cell biology.

  http://Bio-rad.com/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-19
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  math.ucdavis

  News, research information, course information, syllabi, and class links.

  http://www.math.ucdavis.edu/
  百度权重：
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  AlexaRank：0
  收录时间：2025-08-19
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  Redorbit

  Offers space, science and technology news and information and an online community and forum.

  http://Redorbit.com/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-19
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  Anl

  ANL conducts research in four broad categories: basic science, scientific facilities, energy resources, and environmental management, with programs ranging from studies of the atomic nucleus to global climate change research. Located at sites in Argonne, Illinois, and Idaho Falls, Idaho.

  http://Anl.gov/
  百度权重：
  PageRank：
  AlexaRank：0
  收录时间：2025-08-19