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METHOD TO INTRODUCE SUNSHINE AT PLACES WHERE THE SUN DOES NOT SHINE
METHOD TO INTRODUCE SUNSHINE AT PLACES WHERE THE SUN DOES NOT SHINE
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机译:在不发光的地方引入阳光的方法
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摘要
PURPOSE:Save electricity by introducing light of the same liminosity regardless of incident angle of solar light by suing oprical transmission fibers or light transmission tubes which can be bent freely.
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