Electronics-tutorials
Basic Electronics Tutorials and Revision. A free online Resource for Students, Teachers, Beginners and Hobbyists on all aspects of Digital and Analogue Electronics.
http://Electronics-tutorials.ws/百度权重：
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收录时间：2025-05-06Humanmetrics
Focused on relationships, personality and entrepreneurship testing.
http://Humanmetrics.com/百度权重：
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收录时间：2025-05-05Electronics.howstuffworks
Basic introduction to a variety of electronics technology applications targeted for the layperson.on.
http://Electronics.howstuffworks.com/百度权重：
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收录时间：2025-05-05Metservice
A Governmental agency that gathers, analyses and provides weather information for the public of New Zealand, and for a wide range of domestic and foreign commercial customers.
http://Metservice.com/百度权重：
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收录时间：2025-05-05- 百度权重：
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收录时间：2025-05-03 Arabic-keyboard
Arabic keyboard to type Arabic characters on computers which do not have a keyboard for typing the Arabic alphabet.
http://Arabic-keyboard.org/百度权重：
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收录时间：2025-05-04Botanical-online
Personal site with miscellaneous botanical content, including photos, educational information about botany, medicinal and poisonous plants, and gardening. In English and Spanish.
http://Botanical-online.com/百度权重：
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收录时间：2025-05-05greenwichmeantime
Complete guide to times in every time zone in the world.
http://Wwp.greenwichmeantime.com/百度权重：
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收录时间：2025-05-05Physicsclassroom
The Physics Classroom serves students, teachers and classrooms with easy-to-understand and ready-to-use lessons, interactive activities, and engaging curriculum.
http://Physicsclassroom.com/百度权重：
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收录时间：2025-05-06Physicsforums
Bulletin boards on physics and related subjects. Includes related polls and a list of active threads.
http://Physicsforums.com/百度权重：
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收录时间：2025-05-06
