| 单词 | Lee De Forest |
| 释义 | Lee De Forest (once / 337695 pages) n WORD FAMILY Lee De Forest USAGE EXAMPLESPerhaps he also heard Lee De Forest, the radio pioneer whose laboratory was the scene of the performance, shout, “Encore!” New York Times(Oct 06, 2010) n United States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves (1873-1961) Syn|Exp De Forest, Father of Radio electrical engineer a person trained in practical applications of the theory of electricity artificer, discoverer, inventorsomeone who is the first to think of or make something |
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