UV电筒就是发出此波段的光，如此一来岂非减弱电筒的光亮？黄片就能减弱UV?那红蓝片呢？

来源: chinomango 于 2020-10-11 10:20:39 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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