青色発光ダイオード
Contributor: shima-risu
ID : 21290410
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Keywords
led, led, technology, blue, lead, frontier, current, electronic, semitransparent, background, information, closeup, macro, white, light, shine, night time, green, circuit board, lighting, column, color image, photo, industry, electricity, still life, communication, concept, eye, science, visual, advancedRelated items
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