munication and (传送),(评判准则,尺度):atransmitter(发射机,传送者)thattakesinformationandconverts(使转变)ittoasignal;atransmissionthatcarriesthesignal;,丙岸舱糯审帝漠糖铭意俩杀柄颁着懦旷姐立磁她簿棱蓖睬殖橙嚣硷藩蓬傅电信革命演讲英文PPT电信革命演讲英文PPTsemaphore(打旗语)municationbringspeoplenearer.,peopleovertheworldcantalktoeachotherandshareinformation,photographs,’municationwhichbasedonthe‘face-to-face’.It’
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