base unit

短语

[机] 基本单位

词形变化

base units 复数 base units

释义与例句

n.
  1. 1.

    A unit of measurement which is not itself defined in terms of other units, and from which other units may be derived.

    The SI unit of velocity is metres per second, derived from the base units metre and second.

  2. 2.

    The main unit of a computer or hi-fi system.

    When upgrading her computer she bought a new base unit but kept the screen, keyboard and mouse.