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fei666:Ans: {nyVC%@Y 1.灯珠面积选更小的[表情] E])X$:P? 2.灯珠找更小发光角度的[表情] -Yf pfNt 3.材料找更高折射率的[表情] +'f38D* 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) 53jtwklA
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