1·Zap a hydrogen atom and it will resonate at a particular rate: 1420 megahertz (MHz).
轰击氢原子可以与某一特定的频率产生共鸣: 1420兆赫。
2·By contrast, the white space freed up below 700 megahertz is to be made available for unlicensed use by the public.
与此相反，空出来的700兆赫以下的白色空间将会提供给无须授权的公众使用。
3·One megahertz is the same as one thousand kilohertz.
作为一个兆赫是一千千赫相同。
4·A few years ago people buying computers only looked at megahertz, or how many gigahertz, and so on.
几年前，人们购买电脑只能看着兆赫，或者有多少千兆赫，等等。
5·The speed of a computer is usually expressed in cycles per second. Typical machines operate at100 to200 megahertz or100 million to200 million cycles per second.
计算机的速度通常用每秒(行)(钟)期来表示。典型的机器运转在100到200兆赫或者说每秒100到200兆周期。