天文学

Astronomers made observations of Cepheid variable stars —pulsating stars used to measure vast distances—in the Virgo and other clusters to establish the expansion rate and the universe's age.

天文学家用哈勃观测到仙女星座和其它星群中的造父变星，以确定宇宙的膨胀速度和宇宙的年龄。

Astronomers made observations of Cepheid variable stars —pulsating stars used to measure vast distances—in the Virgo and other clusters to establish the expansion rate and the universes age.

天文学家用哈勃观测到仙女星座和其它星群中的造父变星，以确定宇宙的膨胀速度和宇宙的年龄。

Subsequent incumbents include Roger Cotes, Sir George Biddel Airy, who was responsible for the first public observatory in Cambridge, James Challis, Sir George Darwin, son of the naturalist Charles Darwin, Sir Fred Hoyle and Sir Martin Rees.

后来这一担任席位的包括罗杰·柯特斯，剑桥第一个公开天文台负责人艾里爵士，詹姆斯·查理士，博物学家查尔斯·达尔文的儿子乔治·达尔文爵土，恒星天文学之父弗雷德·霍伊尔爵士，以及皇家天文学家芮斯爵士。

The development of astronomy implies considerable progress in mathematics; it is not surprising that the Babylonians should have invented an extremely simple method of ciphering, or have discovered the convenience of the duodecimal system.

天文学的发展暗示了数学有了相当大的进展；令人惊讶就是，巴比伦已经发明了极为简单的计算方法，或者是已经发现了方便的十二进制体系。

As we all know,physics and astronomy are cognate sciences.

众所周知，物理学和天文学是相关的科学。

Physics and astronomy are cognate science s.

物理学和天文学是相关联的科学。

The article said that Herschel had developed a "new theory of cometary phenomena"; he had discovered planets in other star systems; and he had "solved or corrected nearly every leading problem of mathematical astronomy ."

文章说赫舍尔已经发展了"彗星现象的新理论"，发现了其他星系的星球，而且他已经"解决并更正了几乎每个数理天文学的主要问题"。

My professor referred me to the book "Compendious System of Astronomy".

我的教授让我参考《天文学系统概论》这本书。

My professor refer me to the book "compendious system of astronomy".

我的教授让我参考《天文学系统概论》这本书。

An eminent Austrian astronomer with a typical old Austrian name, Conradin Ferrari d'Ochieppo, devoted many years of his life to researching ancient astronomy, and, on that basis, he pointed out a particular conjunction of Jupiter and Saturn in the year 7 b.c., probably the "genuine" year of Christ's birth.

奥地利杰出的天文学家康拉定。法拉利。多齐耶波教授，花了数十年的时间钻研古代天文学。他发现，木星与土星曾经极其罕见地排列在一起，并且持续了相当长的一段时间。时年推算为公元前七年，那可能正好是基督诞生的「确切」年份。

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％。