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fei666:Ans: 't]=ps 1.灯珠面积选更小的[表情] ygh*oVHO 2.灯珠找更小发光角度的[表情] X2~>Z^, U 3.材料找更高折射率的[表情] Ygr1 S(= 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) U]O7RH
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