V2EX functional unit

Functional Unit

Definition / 释义

“功能单位/功能单元”:在一个系统(生物体、机器、组织结构、软件等)中,能够独立完成某种特定功能的最小或基本组成部分。常见于生物学(如“肾单位”)、工程与计算机体系结构(如处理器的运算功能单元)等语境。该短语在不同学科中含义会随对象而略有变化。

Pronunciation (IPA) / 发音(IPA)

/fknl junt/

Examples / 例句

The nephron is the functional unit of the kidney.
肾单位是肾脏的功能单位。

In modern processors, multiple functional units can work in parallel to improve throughput, but they still compete for shared resources.
在现代处理器中,多个功能单元可以并行工作以提高吞吐量,但它们仍会争用共享资源。

Etymology / 词源

“Functional”来自拉丁语 functio(履行、执行、功能),强调“起作用/能完成任务”;“unit”来自拉丁语 unus(一),引申为“一个整体/单元”。合起来“functional unit”在科学与工程写作中常用来指“承担特定功能的基本单元”,作为分析复杂系统时的概念工具。

Related Words / 相关词

Literary Works / 文献与著作中的用例

  • Gray’s Anatomy(《格雷氏解剖学》):常以“functional unit”描述器官的基本功能结构(如肺泡等语境中也会出现类似表述)。
  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):用于讨论细胞结构与其“功能单元/模块”式组织。
  • Computer Architecture: A Quantitative Approach(Hennessy & Patterson,《计算机体系结构:量化研究方法》):在处理器微体系结构中频繁使用“functional unit”指代执行特定运算的硬件单元。
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