而无线设备面临很多不同的因素可以使得信号的传输更加困难。
Wireless devices, however, introduce a number of different factors that make the transmission of this signal a lot more difficult.
电视机设计的一个未来趋势就是用一根线缆同时做到电力和视频信号的传输。
One implication of the new design is that TV displays will soon need but one cable for both their electrical power and video signals.
每个节点都能够自动地路由其他节点中传来的消息，即有效地增强了信号的传输范围。
Each node can automatically route messages from other nodes, greatly increasing the communication range beyond that of any single device.
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