V2EX terawatt

Terawatt

Definition / 释义

terawatt(TW)太瓦;功率单位,等于 10 瓦(1,000,000,000,000 W),常用于描述国家电网峰值功率、全球能源规模、太阳辐射等超大功率量级。

Pronunciation (IPA) / 发音(IPA)

/trwt/;/trwt/

Examples / 例句

This wind farm can supply several terawatts at peak output.
这个风电场在峰值输出时可以提供数太瓦的电力。

Global energy use is often discussed in terawatts to compare humanity’s power demand with what the Sun delivers to Earth.
全球能源使用常用“太瓦”来讨论,以便把人类的用电需求与太阳向地球输送的能量规模作比较。

Etymology / 词源

tera- 是国际单位制(SI)前缀,表示 10,来源于希腊语 teras,原意与“巨大、怪物般庞大”相关;watt(瓦)来自蒸汽机改良者 James Watt(詹姆斯瓦特) 的姓氏。合起来 terawatt 就是“10 瓦”的意思。

Related Words / 相关词

Literary Works / 文学与著作中的用例

  • Bill Bryson,《A Short History of Nearly Everything》(《万物简史》)用太瓦等量级单位解释自然与科技中的宏大能量尺度。
  • Vaclav Smil,《Energy and Civilization: A History》(《能源与文明》)在讨论全球能源系统与功率需求时常使用太瓦量级。
  • IPCC,《Climate Change》评估报告(政府间气候变化专门委员会)在气候与能源情景中以太瓦量级描述全球功率与系统规模。
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