Eratosthenes
美 [??r??tɑsθ??niz]
英 [?er??t?sθini:z] 
英漢解釋
例句
Eratosthenes calculated the distance to the sun in 200BC, having already deduced the circumference of the Earth.
公元前200年,埃拉托色尼在計算地球到太陽的距離時,已經推算出地球的周長。
Eratosthenes result agrees quite nicely with the actual value.
Eratosthenes的結果與實際值是相當接近的。
This is same Eratosthenes who invented the "sieve" for determining whether a number is prime or not.
Eratosthenes還發明了確定一個數是否是質數的“篩子”。
The Greek mathematician, Eratosthenes, had accurately deduced that the world was approximately 25, 000 miles in diameter.
希臘數學家埃拉托色尼,曾準確地推斷地球直徑約為25000公里。