I don't want to convince you, but I can't let you mislead others
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送交者: 008 于 2008-11-09, 13:23:38:
回答: 看到了。不过关于此图，我肯定不是外行 ^-^。 由 Palmetto 于 2008-11-09, 07:03:09:
1. LEDs are not broad band source 2. traffic signs are retroreflectors
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