Public information issuance system of computer is composed of information web and TV relaying system.
计算机公众信息发布系统由信息网和电视转播系统组成。
We have already succeeded in using satellites for relaying TV broadcast and for weather forecase, and to some extent for earthquake prediction.
我们已成功地使用卫星转播电视和气象预报， 在某 种程度上预测地震。
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