Imagination, indispensable though it is, offers a poor substitute for information.
想象虽不可缺少，但提供的信息却很难作为依据。
Signs are information carriers which indispensable to the modern life.
标志符号是现代生活中不可或缺的信息载体。
For some people, newspaper is an indispensable way to gain the latest information.
对许多人来说，报纸是获得最新消息的不可替代的方式。
Video communication is indispensable to economic life of the information society.
视频通信是信息社会经济生活中不可缺少的一部分。
The transmission of information is an indispensable part of human production and life.
信息的传递，是人类生产生活不可或缺的一部分。
In radar signal and information processing system, data acquisition system is an indispensable unit.
数据采集系统是信号与信息处理系统中不可缺少的重要组成部分。
In radar signal and information processing system, data acquisition system is an indispensable unit.
数据采集系统是信号与信息处理系统中不可缺少的重要组成部分。
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