电视通过无线电波发射和接受活动物体的图象。
Television is the transmission and reception of images of moving objects by radio waves.
电视通过无线电波发射和接受活动物体的图象。 。
Television nis the transmission and reception of images of moving objects by radio waves.
第一类为广播电视，通过电视信号的宽带无线电波发射展现在大众面前；
First, there is broadcast television, which reaches the masses through broad-base airwavet ransmission of television signals.
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