V2EX yotta

Yotta

Definition 定义

yotta-(符号:Y):国际单位制(SI)前缀,表示 10(1,000,000,000,000,000,000,000,000),即“佑它 / 尧它(常见译法)”数量级。常用于描述极其巨大的数据量或物理量(如 yottabyte, yottawatt)。

Pronunciation 发音

/jt/

Examples 例句

A yottabyte is 10 bytes.
1 尧它字节(yottabyte)等于 10 字节。

Scientists discussed energy scales up to yottawatts when modeling extreme astrophysical events.
科学家在模拟极端天体物理事件时,讨论了高达尧它瓦(yottawatt)级别的能量尺度。

Etymology 词源

yotta- 是 1991 年国际单位制为扩展大数前缀而引入的名称之一。其构词思路与“更小/更大”前缀成对设计有关;词形受 octo-(源自希腊语 oktō / 拉丁语 octo,意为“八”)影响,因为 10 = (10)(即“千”的 8 次方),同时选用字母 Y 作为符号以保持系列一致性与辨识度。

Related Words 相关词

Literary Works 文学作品

  • *The International System of Units (SI Brochure)*(BIPM,国际计量局《国际单位制(SI)手册》)
  • NIST Guide to the SI(美国国家标准与技术研究院,SI 使用指南)
  • ISO/IEC 80000-13 Quantities and units Information science and technology(信息科学与技术中的量与单位标准,常见 yottabyte 等用法)
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