United States inventor; inventions included the phonograph and incandescent electric light and the microphone and the Kinetoscope (1847-1931)

another improvement, by the famed inventor thomas alva edison (1847-1931) in 1874, was the quadruplex system, which allowed for four messages to be transmitted simultaneously using the same wire.

另一项技术进步——四路系统，由着名发明家托马斯·阿尔瓦·爱迪生(thomas alva edison, 1847- 1931)于1874年发明，它可以使四条信息在同一条电报线上同时传送。

thomas alva edison has been one of the most successful scientists the world has ever seen.

托马斯·阿尔瓦·爱迪生（thomas alva edison）是曾经世界上罕见的、着名的科学家之一 。

thomas alva edison was a great american inventor.

爱迪生是美国人，他是一位伟大的发明家。

thomas alva edison was a great american inventor. when he was a child.

托马斯·阿尔瓦·爱迪生是美国的一位伟大的发明家。小时候。

thomas alva edison was awarded more patents on inventions than any other american.

生 拥有的发明专利比其他任何一个美国人都多。

famous american inventor thomas alva edison was a master of developing ideas into commercial successes and died a rich and powerful man after a long prolific life.

着名的美国发明家托马斯·阿尔瓦·爱迪生就是将设想开发成商业成果的大师。 他度过了富有创造力的漫长的一生，死时是一位富有而有权威的人。

thomas alva edison is remembered most for the electric light, his phonograph.

爱迪生一生有上千种发明，如电灯，留声机等。

thomas alva edison also knew the value of 「half waking」 states.

托马斯·爱迪生也知道「半清醒」状态的价值。

its invention is generally credited to thomas alva edison (1877). stereophonic systems, with two separate channels of information in a single groove, became a commercial reality in 1958.

一般认为留声机是爱迪生于1877年发明的。立体音响在一条纹路上有两个独立声道的立体音响系统，该产品在1958年首次进入市。

thomas alva edison then went onto create the first light bulb.

托马斯亚瓦爱迪生随后发明了第一盏电灯泡。