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汉语拼音：wú xiàn diàn bō

无线电技术中使用的电磁波，波长从0.1毫米—100兆米以上。可分为长波、中波、中短波、短波、微波等。

• radio waves from outer space

  来自外层空间的无线电波

• Sound waves, light waves, and radio waves have a certain frequency, or number of waves per second.

  声波、光波或无线电波等都有特定的频率，或者说是每秒的波数。

• The universe is bathed in a sea of radio waves.

  宇宙浸泡在无线电波的海洋中.

• The original current set up by the radio waves is very feeble.

  无线电波产生的初始电流很弱.

• Radio waves travel in straight lines.

  无线电波是直线传播的.

• Do any of these radio waves sweeping through space to the Earth contain a message?

  在飞越空间到达地球的这些无线电波中,是否可能有一些电波包含着某一种信息 呢 ?

• The highly sophisticated electronic methods rely on either light or radio wave propagation.

  较复杂的电子技术是利用光或无线电波传播.

• This high frequency alternating current produces the high frequency radio waves mentioned in the previous chapter.

  这种高频交流电流产生前一章提到过的高频无线电波.

• I work here; turn here; radio waves received here on Earth.

  我在这儿工作; 转过来; 这儿总会接受到无线电波的.

• And straight through your radio waves, it plays and plays.

  并且直接通过你的无线电波, 播放着播放着.

• The tiny batteries that power them can be recharged by radio waves.

  微型电池的供能能通过无线电波充电.

• But the attraction of radio waves is that are pretty much everywhere.

  但是无线电波的吸引力在于它们几乎无处不在.

• The speed of radio waves is as great as that of light.

  无线电波的速度与光波一样快.

• The year is 1887, and Heinrich Hertz is generating radio waves.

  这是1887年, 31岁的赫兹正在制造无线电波.

• Of the wealth of information radioed back, a few items are especially notable.

  无线电波发回的大量信息中, 有几条是特别令人注目的.