| 释义 |
圆周率yuánzhōulǜ圆周长度与圆的直径长度的比,圆周率的值是3.14159265358979323846…,通常用‘π’表示。计算中常取3.1416为它的近似值。{pi; ratio of the circumference of a circle to its diameter, which is 3.14159265358979323846…, written as ‘π’, oft. rounded off to 3.1416 for use in practical calculations} |