Eratosthenes

基本解釋

This is same Eratosthenes who invented the "sieve" for determining whether a number is prime or not.
Eratosthenes還發(fā)明了確定一個(gè)數(shù)是否是質(zhì)數(shù)的“篩子”。
The best of the early measurements of the earth's circumference was made by Eratosthenes.
早期測(cè)量地球周長(zhǎng)的最準(zhǔn)確結(jié)果是由埃拉托斯特尼得出的。
Eratosthenes sieve method is a method to search for all prime numbers less than natural number N(N>1).
埃拉托斯特尼篩法是求不超過(guò)自然數(shù)N(N>1)的所有質(zhì)數(shù)的一種方法。
Eratosthenes knew that the distance between Alexandria and Syene was approximately 800 kilometers, because he hired a man to pace it out.
Eratosthenes知道Alexandria和Syene之間的距離約略是800公里，因?yàn)樗陀萌擞媚_一步一步地走而算出來(lái)的。
Eratosthenes had the presence of mind to do an experiment, actually to observe whether in Alexandria vertical sticks cast shadows near noon on June21.
Eratosthenes立刻打定主意，并且馬上就進(jìn)行實(shí)驗(yàn)：觀察垂直的棍棒在6月21日中午的Alexandria城是否會(huì)現(xiàn)出影子。