延迟时间会大于或等于电磁信号传输距离除以光速的比值。
The latency cannot be less than the distance the electromagnetic signal has to travel divided by the speed of light.
在包括3个或更多延迟路径的本发明实施例中，电路515传输多个选择信号给乘法器以选择适当的延迟路径。
In embodiments of the present invention that include 3 or more delay paths, circuit 515 transmits multiple select signals to the multiplexer to select the appropriate delay path.
所谓时滞是指信号传输的延迟。
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