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위키매체공용 자유롭게 사용할수 있는 110,398,046개의 매체 서류가 있으며, 누구나 기여할수 있습니다. |
오늘의 그림
A musician playing a tenor saxophone at a jazz festival in Uruguay. Adolphe Sax, inventor of the saxophone, was born on this day in 1814.
오늘의 매체
The Kaitiaki, the Sensor, and the Scientist – a documentary video by New Zealand's Science for Technological Innovation's National Science Challenge about the development of a sensor for public water quality measurement and monitoring such as of river pollution.
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Aircraft Rescue Firefighting training (U.S. Marine Corps).
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