V2EX nanosecond

Nanosecond

释义 Definition

纳秒:时间单位,等于 十亿分之一秒(\(10^{-9}\) 秒)。常用于描述极短的时间间隔(如计算机、电子、物理中的时间尺度)。

发音 Pronunciation

/nnsknd/

例句 Examples

A nanosecond is one billionth of a second.
纳秒是十亿分之一秒。

Modern processors can execute multiple operations in a few nanoseconds, which is why small delays matter in high-frequency trading.
现代处理器能在几纳秒内执行多项操作,这也是为什么在高频交易中微小延迟会很关键。

词源 Etymology

nano- 来自希腊语 nanos,意为“矮小的、极小的”,在科学计量中表示 \(10^{-9}\);second 来自拉丁语 secundus(“第二”),与“秒”作为时间分割单位的历史发展相关。合起来 nanosecond 就是“十亿分之一秒”。

相关词 Related Words

文学作品 Literary Works

  • Michael Crichton《Prey》(《猎杀》):涉及纳米技术与相关时间尺度的表述中常会出现 nanosecond 等单位词。
  • Neal Stephenson《Cryptonomicon》(《密码宝典》):在讨论计算、工程与技术细节的语境中可见 nanosecond 这类精细时间单位的使用。
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