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fei666:Ans: <#sB ; 1.灯珠面积选更小的[表情] F^KoEWj[H 2.灯珠找更小发光角度的[表情] R~)c(jj5 3.材料找更高折射率的[表情] UIbVtJ 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) %/s:G)
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