V2EX nm

Nm

定义 Definition

nm 常见为缩写,最常用含义是 nanometer(纳米),长度单位,1 nm = 10 米,常用于描述光的波长、材料的微观结构或半导体工艺尺度。(在短信/网络语境中也可能表示“not much”,但这里以最常见的科学计量含义为主。)

发音 Pronunciation (IPA)

/nnmitr/(对应 nanometer

例句 Examples

The laser has a wavelength of 532 nm.
这种激光的波长是 532 纳米。

Researchers measured particles only a few nm wide, which helped explain the material’s unusual behavior.
研究人员测量到只有几纳米宽的颗粒,这有助于解释该材料的异常表现。

词源 Etymology

nanometer 由前缀 nano-(源自希腊语 nanos,意为“矮小/极小”)+ meter(米,源自法语 mètre)组成;nm 是其常见书写缩略形式,尤其用于科学与工程文本中。

相关词 Related Words

文学作品 Literary Works

由于 nm 主要作为科学计量缩写使用,它更常见于论文、教材与科普作品中;在文学性叙事里通常会写作 nanometer 或用描述性表达出现。较常见涉及纳米尺度概念的科普/非虚构作品包括:

  • Engines of Creation(K. Eric Drexler,《创造的引擎》)
  • Nano: The Essentials(T. Pradeep,《纳米:基础要义》)
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