practical envelope demodulator

例句：

1. 1.The practical envelope demodulator is a device that can be used to demodulate signals from an antenna.
   实用信封调制器是一种可以用于从天线中解调信号的设备。
2. 2. The practical envelope demodulator is a useful tool for signal processing in wireless communication systems.
   实用信封调制器是无线通信系统中信号处理的一种有用的工具。
3. 3. The practical envelope demodulator is used to demodulate the received signals and extract the informationfrom them.
   实用信封调制器用于解调接收到的信号，并从中提取信息。