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fei666:Ans: i9/aAH0 1.灯珠面积选更小的[表情] ]C) 4 2.灯珠找更小发光角度的[表情] %Ah^E$&n2 3.材料找更高折射率的[表情] >uSy 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) '#k0a,<N
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