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fei666:Ans: eL$U M 1.灯珠面积选更小的[表情] c#4L*$ViF 2.灯珠找更小发光角度的[表情] +e3WwUx 3.材料找更高折射率的[表情] P.H/H04+ 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) ~IJZM`gN
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