基本单位

【化】 elementary entity; elementary unit

1. 家庭是社会的基本单位。
   The family is the basic unit of society.
2. 一种基本单位或基础单位，常常指机器指令的最低一级或语言翻译的最低的单位。
   A basic or fundamental unit, often referring to the lowest of a machine instruction or lowest unit of language translation.
3. 绝对零度标定的度量或度量单位的，从长度、质量或时间的基本单位而得出
   Relating to measurements or units of measurement derived from fundamental units of length, mass, and time.

基本的英语翻译：

单位的英语翻译：