Contemporary mass communication is mainly visualizing in two ways: the visualization of printing media forms and the visualization of traditional art forms.
当代大众传播的视觉化主要有两种表现形态：印刷媒介形态的视觉化传播和传统艺术形态的视觉化传播。
In fact, online communication is limited by many controls as same as traditional mass communication, including visible and invisible controls.
事实上，网络传播和传统的大众传播一样都受到了许多的社会控制，包括有形和无形的控制。
Modern FH communication system need transmit a mass of data, traditional modulations are no longer suitable for high-speed data transmitting in FH system due to low spectrum efficiency.
现代跳频系统需要传输大量数据信息，传统调制方式由于频谱利用率低而不适合跳频系统的高速数据传输。
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