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Добавлено 16.02.2017, 7:27:47 в Laser Products is cheap | Категория Разное
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http://www.htpow.com/high-powered-30000mw-blue-laserpointer-445nm-worlds-brightest-p-1027.html Laser Pointer 30000mw Blue Laser 445nm world's brightest The World's Most Powerful High Power Powered where the transverse profile of the optical intensity of the beam.Most laser beams are linearly polarized, i.e., the electric field oscillates in a certain direction perpendicular.If a laser beam is focused to a spot (beam waist) with beam.   Подробнее