Ultra-violet light is not in the part of the visible spectrum, but why does an ultra-violet lamp emit violet colored light?
紫外光系?湛杉?馄滓酝?但系点解我地可以见到紫外光灯发出紫色???。
Ultra-violet light is not in the part of the visible spectrum, but why does an ultra-violet lamp emit violet colored light?
紫外光系?湛杉?馄滓酝?但系点解我地可以见到紫外光灯发出紫色???。
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