| 释义 |
计算尺jìsuànchǐ根据对数原理制成的一种辅助计算用的工具,由两个有刻度的尺构成,其中一个嵌在另一个尺的中间并能滑动,把两个尺上一定的刻度对准,即能直接求出运算的结果。应用于乘、除、乘方、开方、三角函数及对数等运算上。{slide rule; supplementary tool for calculation made on the principle of logarithm, consisting of a ruler with a central sliding piece, both parts being marked with various number scales, used to find product, quotient, involution, square root, trigonometric function, logarithm, etc.;}也叫also算尺{suànchǐ}。 |