... 窄频带滤波器 narrowband filter 窄频带调频 narrowband FM 窄频带调频 narrowband frequency modulation ...
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narrowband fm adapter 窄带调频附加器
narrowband fm synchronization broadcast network 同频同播网
FM narrowband 窄频带调频
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The broadband FM signals and the narrowband CF signals travel out to a target, reflect from it, and return to the hunting bat.
宽带 FM 信号和窄带 CF 信号传输到目标，从目标反射回来，然后返回猎蝠。
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