天文学

He has shown great enthusiasm for astronomy.

他对天文学有极大的兴趣。

Children and teenagers will be able to improve their basic knowledge on physics and mathematics through enthusiasm on astronomy.

儿童和青少年将能够改善他们的基本知识，物理和数学通过对天文学的热情。

He made significant contributions to the field of astronomy.

他在天文学领域上有着重大贡献。

One branch of amateur astronomy, amateur astrophotography , involves the taking of photos of the night sky.

一间分行的业余天文学，业余天文摄影，涉及到的照片夜空。

One of the leading scientific journals in the field is named Astronomy and Astrophysics .

的领导者之一，科技期刊在外地被命名天文学和天体物理学。

Nowadays astrophysics and astronomy have come to mean almost the same thing.

今天，天体物理学和天文学的含义已经变得差不多一样了。

The MIT Physics Department is one of the largest in the nation, in part because it includes astronomy and astrophysics.

麻省理工学院物理系是美国最大的物理系之一，部分是由于它包括了天文学和天体物理学。

The study of jets presents one of fascinating and intriguing aspects of astronomy and astrophysics.

喷流的研究是天文学和天体物理学中最使人感兴趣的课题之一。

She read all the new books on astronomy and bought the most important of them for the Nantucket Athenaeum library.

她读了天文学方面所有的新书，并为楠塔基特科学协会图书馆购置了其中最重要的书。

The Balmer series is particularly useful in

巴耳麦系在天文学中特别有用，因为巴耳麦线出现在许多天体的现象中。而且

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。