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fei666:Ans: A:bPIXb 1.灯珠面积选更小的[表情] A9l})_~i 2.灯珠找更小发光角度的[表情] 5Sjr6l3Vq8 3.材料找更高折射率的[表情] ;s\;78`0 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) G k"L%Zt)
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