V2EX megahertz

Megahertz

释义 Definition

megahertz(MHz)兆赫,频率单位,等于一百万赫兹(10 Hz),表示每秒发生一百万次周期性振动/变化。常用于描述无线电、处理器时钟、信号带宽等。(也常见缩写 MHz。)

发音 Pronunciation

/mhts/

例句 Examples

The radio station broadcasts at 98.5 megahertz.
电台以 98.5 兆赫的频率播出。

Modern devices can process signals at hundreds of megahertz, which helps reduce latency in high-speed communication systems.
现代设备可在数百兆赫的频率下处理信号,这有助于在高速通信系统中降低延迟。

词源 Etymology

megahertz 由前缀 **mega-**(表示“百万、10”,源自希腊语 megas “大”)+ hertz(赫兹,以德国物理学家 Heinrich Hertz 命名的频率单位)组合而成,字面意思就是“百万赫兹”。

相关词 Related Words

文学与著名作品 Literary Works

  • Michael Crichton《侏罗纪公园》(Jurassic Park):作品涉及计算机与系统运行等技术语境,常出现以 MHz 为代表的频率/时钟等计量表达。
  • Tom Clancy《追击红色十月号》(The Hunt for Red October):与军事通信、无线电监听相关的叙述中,常会用到以 Hz/kHz/MHz 表示的频率单位。
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