narrow-band secure speech system
... narrow-band receiver 窄带接收机 narrow-band secure speech system 窄带话密系统 narrow-band-selective receiver 窄带选择接收机 ...
基于56个网页-相关网页
narrow band secure voice system
... narrow band saw ==> 窄带锯 narrow band secure voice system ==> 窄带话密系统 narrow band signal ==> 狭帯域信号 ...
基于4个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress