释义 |
De For·est AHD[dĭ fôrʹĭst, fŏrʹ-] Lee Known as "the Father of Radio.”(1873-1961) D.J.[dɪ ˈfɔːrɪst, ˈfɒr-]K.K.[dɪ ˈfɔrɪst, ˈfɑr-]NONE(无词性)- American electrical engineer who patented the triode electron tube (1907) that made possible the amplification and detection of radio waves. He originated radio news broadcasts in 1916.德福雷斯特,李:(1873-1961) 美国电力工程师,获三极电子管的发明专利(1907年),该发明使无线电波的增幅和检波成为可能。1916年他首创无线电新闻广播
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