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李·德富雷斯特（英语：Lee De Forest，1873年8月26号－1961年7月30号），美国发明家，为真空三极管个发明者，被誉为“无线电之父”、“电视始祖”、“电子管之父”。真空三极管个发明让电子管得以成为能够实用个电子元件，推动