祖率[zǔ lǜ]
词典the approximate ratio of the circumference of a circle to its diameter as calculated by Zu Chongzhi （祖冲之 A.D. 429-500）, i.e. between 3.1415926 and 3.1415927
祖率[zǔ lǜ]
{数} the approximate ratio of the circumference of a circle to its diameter as calculated by Zu Chongzhi (祖冲之 A.D. 429-500), i.e. between 3.1415926 and 3.1415927