| 释义 |
De For·est 英dɪ ˈfɔːrɪst, ˈfɒr-美dɪ ˈfɔrɪst, ˈfɑr-AHDdĭ fôrʹĭst, fŏrʹ- 短语¹¹⁴⁴⁶⁷⁺⁴
基本英英例句例句
德福雷斯特①姓氏 ②Lee,1873-1961,美国发明家
Noun:
United States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves 1873-1961Lee de Forest invents the vacuum tube.李.;德福雷斯特发明电子管。
Audion: Elementary radio tube developed by LeeDe Forest.三极检波管:由美国的德福雷斯特所发明的一种基本的电子管。
And Infigen Inc. ofDe Forest, Wisconsin recently succeeded at cloning a partially humanized pig.威斯康星州底弗莱斯特的因菲金公司最近成功地克隆了一种部分人性化了的猪。
In 1905 Fleming produced the first diode in England and in 1906De Forestmade the first triode in the United States .1905年弗莱明在英国制成了第一个二极管。1906年德.;福雷斯特在美国研制了第一个三极管。 Sound films became possible through the developments pioneered by Lee De Forest, who exhibited brief sound films to the public in1923.
福雷于1923年为公众放映了简短的有声片，由他引起的一系列发明使有声片最终成为现实。 tdict
The triode, invented by Lee De Forest in the early part of the last century, was the first electrical amplifier.
在上一世纪初期的早些时候发明，是第一个电气放大器。 com |