某些地方，这种将工作频道与闲置频率分隔开的“空白频段”，统共占到了电视广播全部可用带宽的差不多70%。

In some places, this "white space" of unused frequencies separating working channels amounted to as much as 70% of the total bandwidth available for television broadcasting.

youdao

某些地方，这种将工作频道与闲置频率分隔开的“空白频段”，统共占到了电视广播全部可用带宽的差不多70%。

In some places, this "white space" of unused frequencies separating working channels amounted to as much as 70% of the total bandwidth available for television broadcasting.

youdao