There is no distant transmitter to telecast the scene.
没有远距离发射机传送景象。
An electromagnetic field can also induce motion in charged panicles, which is what happens when the electromagnetic field of a distant transmitter moves past the antenna of receiving set.
电磁场也能引发荷电粒子的运动，这就是一定距离以外发射器传来的电磁波在传过接收装置天线时的情况。
By contrast, Voyager 1, the most distant functioning space probe, is using an extremely weak transmitter to beam radio messages back to earth across 10 billion miles of space.
与此形成鲜明对比的是，最遥远的旅行者1号太空飞船在飞出100多亿公里之外，还能利用极其微弱的发射器将无线电信号传回地球。
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