In over-the-air VHFbroadcasting, the channel between two analogue stations had to be left unused so that it would not interfere with adjacent ones.
因为甚高频无线广播中,两个模拟频点之间的频道必须留着不用,为的是不干扰邻近频道。
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That was because, in over-the-air VHFbroadcasting, the channel between two analogue stations had to be left unused so that it would not interfere with adjacent ones.