drake equation

常見例句

Even if the Drake Equation is true, and there are millions of civilizations out there, finding them is like looking for a needle in a haystack.
即使德瑞尅方程式是真的，確實存在著數(shù)百萬的文明，但要找到他們就像大海撈針。
His quirky study uses a famous maths formula called The Drake Equation, which was first used to estimate the existence of extra-terrestrial life。
這一公式最初被用於估算外星生命存在的幾率。
edu.sina.com.cn
The baffling Drake equation reads: N = R* x Fp x Ne x Fi x Fc x L, and helped pioneering scientist Professor Drake to predict that there couldbe 10, 000 civilisations in our galaxy.
這一令人費解的“德雷尅等式”爲N = R* x Fp x Ne x Fi x Fc x L，先敺科學家德雷尅教授曾利用該公式作出預(yù)測：銀河系中可能存在1萬種文明。

And while out in the San Francisco Bay Area, we swing by the SETI institute to find out how the organization is actively looking for extraterrestrial life in the universe, including a discussion with SETI founder and developer of the Drake Equation, Frank Drake.
ENGADGET