How many characteristics have all waves in common?
波有什么共同的特性?
All she could hear was the sound of the waves.
她听得到的只有海浪声。
Nearly all astronomical objects in space emit radio waves, whether nearby stars, objects in far away galaxies, they all give off radio waves.
太空中几乎所有的天体都发射无线电波,无论是附近的恒星,还是遥远星系中的天体,它们都会发射无线电波。
All the men saw were violent waves which rose and came fiercely down on them.
VOA: special.2010.03.06
And all we mean by constructive interference is that literally those two waves add together, such as the maxima are now twice as high, and the minima are now twice as low.
相干相长,相干相长也就是,说两个波加在一起,所以最大值变成2倍那么高,最低值变成2倍那么低。
However, every time Paul rolled over, huge waves covered all the coastal towns.
VOA: special.2009.01.24
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