Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub reflector, in the same way as a curved mirror focuses visible light to one point.
大多数天线被制成碟形，用以收集和反射无线电波至亚反射器，就像曲面镜将可见光聚焦于一点一样。
The Cincinnati-based company created one of the first radio soap operas as a way to market its products, and years later it created its own soap operas, including “As the World Turns,” for television.
这家辛辛那提市为总部的总司首创了广播肥皂剧来推销公司产品并且在数年之后拥有了自己的肥皂剧，包括电视版的《让世界转动》。
Ms Dozier wears a two-way radio to deal with problems the minute they arise. One is small: the girls' toilets have no paper towels.
戴着双通无线电的她，问题刚一出现，就要去解决了：第一个问题很简单，女生厕所没有卷纸，另一个问题就有点麻烦，楼上有人在吵架。
The radio signal was sent out in a special way so that no one was able to jam it.
这种无线电信号是用一种特殊的方式发送的，所以无法对它进行干扰。
Sarah:This one. (pointing to the advertisement for a movie)Let's see this. I heard it is really good. They were talking about it on the radio this morning on my way to work.
就是这个。（指着电影广告）我们看这个吧，我听说这部片子挺不错的。我今天在上班的路上就听到广播里推荐它来着。
One way to do this is to use a pop-up menu instead of radio buttons, even if there are only two choices.
一种方法是使用一个弹出，而不是单选按钮菜单，即使只有两个选择。
One floor man should stand close to the spool to inform the driller with a two-way radio when there is no loose drilling line coming off the spool.
让一个钻工站在大绳储备筒旁边，用对讲机把大绳的松紧情况通知司钻。
The penny press, followed by radio and television, turned news from a two-way conversation into a one-way broadcast, with a relatively small number of firms controlling the media.
便士报紧随收音机、电视其后将新闻由双向交流的形式变为单向播送，并且传媒业在相对较少的几家公司的控制之下。
That's one way that an extraterrestrial civilization can send a signal that stands up above the radio background noise.
这是外星文明可以突出于宇宙的无线电背景噪声发送信号的一种方式。
That's one way that an extraterrestrial civilization can send a signal that stands up above the radio background noise.
这是外星文明可以突出于宇宙的无线电背景噪声发送信号的一种方式。
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