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fei666:Ans: ^[TOZXL`: 1.灯珠面积选更小的[表情] Pd],}/ZG- 2.灯珠找更小发光角度的[表情] =t.F2'<[Z 3.材料找更高折射率的[表情] hht+bpHl 4.灯珠离TIR再近一些[表情] (2023-01-03 22:49) "1%*'B^}bw
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