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fei666:Ans: .axJ '*~W 1.灯珠面积选更小的[表情] `;KU^dH 2.灯珠找更小发光角度的[表情] 6zv-nMZc 3.材料找更高折射率的[表情] |,!]]YO.V 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) R>Q&Ax
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