The number of units of useful information contained within a linear dimension. 信息密度在一個(gè)線(xiàn)性維度內有用的信息單元的個(gè)數。
The number of units of useful information contained within a linear dimension, usually expressed in units per inch. 在一單位長(cháng)度內包含的有用信息單位數。通常用每英寸多少單位表示。