V2EX terametre

Terametre

释义 Definition

terametre(n.)太米,长度单位,等于 10 米(一万亿米)。常用于描述天文学或宇宙尺度的距离。(也常见拼写 terameter。)

发音 Pronunciation

/trmit/(BrE), /trmitr/(AmE)

例句 Examples

A terametre is a trillion metres.
太米等于一万亿米。

In astronomy, distances between objects can be expressed in terametres to avoid writing long strings of zeros.
在天文学中,为了避免写出一长串的零,天体之间的距离有时会用太米来表示。

词源 Etymology

由 SI 国际单位制前缀 **tera-**(表示 10,源自希腊语 téras,有“巨大、怪物般巨大”之意,引申为“极其庞大”)+ metre(米,源自希腊语 métron “测量”)构成,字面意思是“10 米”。

相关词 Related Words

文学与作品出处 Literary Works

  • *The International System of Units (SI Brochure)*(BIPM,国际计量局《国际单位制(SI)手册》)
  • *NIST Special Publication 811: Guide for the Use of the International System of Units (SI)*(美国国家标准与技术研究院,SI 使用指南)
  • The Cambridge Encyclopedia of Astronomy(《剑桥天文学百科全书》;天文学语境中涉及极大距离单位时可能出现)
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