quadruplex

基本解释

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。
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 Recessed Twin Packaged Blowers utilize the same powerful quadruplex blowers featured in Standard Twin Packaged Blowers, providing the same excellent performance and service-life characteristics.
包装的嵌入式双风机使用同样强大的四链鼓风机，有着标准双袋鼓风机的特点，性能优异，服务优质。
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In 1874, Edison invented the quadruplex telegraph, which allowed the transmission of two signals in each direction down one wire.
FORBES: How You Can Profit From Thomas Edison's Inventions
Now, what sets the quadruplex telegraph apart is not the invention itself but how Edison put to use the harvest that he reaped from its sale.
FORBES: How You Can Profit From Thomas Edison's Inventions