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canghaiyisu6:我这边做过,不过你50W的功率,靠近LED准直透镜用PMMA ,这个塑料扛得住这个温度吗? kSpy-bVn 我用2个透镜玻璃材料做的准直 *)(S}D\94 (2017-03-22 14:59) >T#" Im-
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