- 问题详情:Anewmethodofdeliveringdata,whichusesthevisiblespectrum(光谱)ratherthanradiowaves,hasbeentestedinaworkingoffice.Li-ficandeliverinternetaccess100timesfasterthantraditionalwi-fi,offeringspeedsofupto1Gbps(gigabitpersecond).Itrequiresalightsource,...
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