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fei666:Ans: $ >].;y?$ 1.灯珠面积选更小的[表情] t0P_$+w.> 2.灯珠找更小发光角度的[表情] 1L\r:mx3 3.材料找更高折射率的[表情] 78?{;iNv 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) =>A}eR1Y
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