De Forest

In 1907 De Forest patented audion, or triode.

1907年,德福来斯特发明的三极真空管获得专利.

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.

the vacuum tube is invented by american physicist lee de forest.

年发明的真空管是美国物理学家李。德森林。

Lee de Forest invents the vacuum tube.

李.德福雷斯特发明电子管.

the farmer tells him to cut down some treed in de forest.

农民告诉他到森林里面砍一些树。

de forest didn't have a big budget for film production and couldn't seriously interest hollywood in his invention.

福瑞斯特并没有在电影制作上花大笔的钱，因而他的创造也没能引起好莱坞的兴趣。

sound films became possible through the developments pioneered by lee de forest , who exhibited brief sound films to the public in 1923.

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。