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，由著名发明家托马斯·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。
The J-10 USES a digital quadruplex four-channel FBW system developed by the 611 Institute.
J - 10采用了611所研究的数字4余度(4个通道)电传飞控系统。
The J-10 USES a digital quadruplex four-channel FBW system developed by the 611 Institute.
J - 10采用了611所研究的数字4余度(4个通道)电传飞控系统。
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