“primary visual and vocal media”的概念、定义、翻译、参考文献-科学参考

单词	primary visual and vocal media
释义	primary visual and vocal media Encyclopedia 文学原生视听媒介释 primary visual and vocal media原生视听媒介电报、电话等电子媒介装置诞生之前，借由声音、视觉等表意符号传递信息，从而拓展自身传播限度的早期媒介形式。
随便看	properly elliptical operator properly elliptic equation properly equivalent form properly hyperbolic properly infinite algebra properly infinite projection properly nilpotent element properly posed problem properly primitive form properly triangular matrix proper maintenance method of photographic lens proper map proper mapping proper mass proper modification proper morphism proper motion proper motion group proper motion in declination proper motion in right ascension proper motion member proper motion membership proper motion star proper name proper name of a function

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