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fei666:Ans: p_FM 2K7! 1.灯珠面积选更小的[表情] }^ rxsx` 2.灯珠找更小发光角度的[表情] 2hh8G5IaQ 3.材料找更高折射率的[表情] Y'v[2s 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) {o=?@ $6C
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