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fei666:Ans: !8T04988j 1.灯珠面积选更小的[表情] hN~H8.g 2.灯珠找更小发光角度的[表情] g/ShC8@=u 3.材料找更高折射率的[表情] UKV<Ye| 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) nw, .I [
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