That's an estimate only based on our astronomy.

基于天文的估计。

I took a course in astronomy at college.

大里选了一门天文的课程。

That's always been the story of astronomy.

这一直是天文的课题。

What else could go wrong with the astronomy example?

天文的例子里 还有哪里可能出错呢？

It's the fundamental meterstick of astronomy, and the scale we use to measure everything.

它是天文的基本米尺，也是们用来测量一切事物的尺度。

They had astronomical theories but could calculate those at the turn of a handle.

他们具备天文的理论知识，但可以过转动把手来进行实际计算。

In the course of his quest, this man managed to change our understanding of astronomy forever.

探索过程中，他永改变了们对天文的理解。

The astronomer in charge had a novel idea.

主管的天文家有一个新奇的想法。

Radio telescopes used for astronomy rely on a specific band of wavelengths to see deep into space.

用于天文的射电望过特定的波长观察到太空深处。

She would later go on to become the first female head of astronomy at Harvard University.

后来，她成为了哈佛大天文的第一位女性负责人。

No one had ever thought before to consider an astronomical explanation for variations in Earth's weather.

他之前，从未有人从天文的角度对地球的天气变化作过解释。

Dr Robert Massey of the Royal Astronomical Society explains where to look for the planets.

皇家天文会的罗伯特·梅西博士解释了哪里寻找行星。

He published another book on astronomy, and once more was summoned to appear before the Inquisition.

他出版了另一本有关天文的书籍，于是他再次被召入宗教法庭。

The Astronomy theory exam on Wednesday morning went well enough.

星期三上午的天文理论考试非常顺利。

The Astronomy theory paper on Wednesday morning went well enough.

星期三上午的天文理论考试非常顺利。

Two standard astronmical techniques have been used in the search.

探索工作中使用了两种标准的天文技术。

He is an astronomer from the University of Chicago.

他是芝加哥大的天文家。

I have been spending a lot of time going through their astronomy course lately.

最近花了很多时间习他们的天文课程。

The development of such a telescope will be one of the great astronomical projects of the twenty-first century.

而开发这样一台望将会是21世纪天文的一个重要的研究课题。

The development of such a telescope will be one of the great astronomical projects of the 21st century.

而开发这样一台望将会是21世纪天文的一个重要的研究课题。