De Forest

常见例句

Lee de Forest invents the vacuum tube.
李.;德福雷斯特发明电子管。
Audion: Elementary radio tube developed by Lee De Forest (patented 1907).
三极检波管:由美国的德福雷斯特所发明(1907年获专利权)的一种基本的电子管。
And Infigen Inc. of De 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 1906 De Forest made 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。
Lee de Forest reads a paper before an AIEE meeting on the Audion, first of the vacuum tubes that would make long distance radiotelephony possible.
电子管的首次使用将使长途无线电话变为可能。
In addition to these two types of reducing agents, ” “ de forest, “ “ processing Tin ”, sulfourea ” and “ Langres ”, etc is also available for reducing agent.
不兴以上两类还原剂边，“德科林”、“加工锡”、“二氧冻硫脲”、“朗格勒”等也是可用的还原剂。