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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