Eratosthenes

常见例句

This is same Eratosthenes who invented the "sieve" for determining whether a number is prime or not.
Eratosthenes还发明了确定一个数是否是质数的“筛子”。
The best of the early measurements of the earth's circumference was made by Eratosthenes.
早期测量地球周长的最准确结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).
埃拉托斯特尼筛法是求不超过自然数N(N>1)的所有质数的一种方法。
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之间的距离约略是800公里，因为他雇用人用脚一步一步地走而算出来的。
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，并且马上就进行实验：观察垂直的棍棒在6月21日中午的Alexandria城是否会现出影子。
Eratosthenes asked himself how, at the same moment, a stick in Syene could cast no shadow and stick in Alexandria, far to the north, could cast a pronounced shadow.
Eratosthenes心中不禁疑问著：同样都是夏至的时刻，在Syene城，棍棒完全不显出阴影，而在Syene北方的Alexandria城，却投射出非常显著的影子。