Mpg
Provides information on the society, the Institutes, research, documentation and multimedia. German and English.
http://Mpg.de/百度权重:
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收录时间:2025-02-24Aip
Gateway for news, jobs, and other physics resources. AIP is a STM publisher of research journals, proceedings and other scientific publications. AIP provides services for scientific societies including membership and subscription management.
http://Aip.org/百度权重:
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收录时间:2025-02-24- 百度权重:
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收录时间:2025-02-24 Nsf
Opportunities for research and education funding in all areas of science and engineering.
http://Nsf.gov/百度权重:
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收录时间:2025-03-01- 百度权重:
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收录时间:2025-04-10 Geonames
A worldwide geographical database with a search function, browsable maps, and downloadable data files available free under a Creative Commons attribution license.
http://Geonames.org/百度权重:
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收录时间:2025-03-30Geology
A website for students, geologists and those who enjoy the earth. Features large collections of US and world country maps, satellite images, geology dictionary, printable time scale, articles about earth science and much more.
http://Geology.com/百度权重:
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收录时间:2025-02-27Repec
Collaborative volunteer effort to enhance the dissemination of research in economics.
http://Repec.org/百度权重:
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收录时间:2025-03-01Esa
Resource for European launchers, space science, telecommunications, Earth observation, and manned spaceflight. Updated information on launches, spacecraft in orbit, and events.
http://Esa.int/百度权重:
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收录时间:2025-02-28Coolmath
An amusement park of mathematics. Puzzles and number problems, fractals, geometry, calculus, algebra, online games, online calculators, and links.
http://Coolmath.com/百度权重:
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收录时间:2025-03-01
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