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fei666:Ans: l|+BC 1.灯珠面积选更小的[表情] Xy5s^82? 2.灯珠找更小发光角度的[表情] y"<))-MH 3.材料找更高折射率的[表情] Hiv!BV| 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) -l-E_6|/W
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