被称为

Annie Jump Cannon, a leading astronomer, discovered so many stars that she was called "the census taker of the sky."

Annie Jump Cannon是最伟大的天文学家之一，发现了众多星球，被称为"天空的户口调查人员"。

Annie Jump Cannon, __a leading astronomer___ discovered so many stars that she was called "the census taker of the sky."

Annie Jump Cannon，一名主要的天文学家，发现了如此至多的恒星，因此被称为"天空人口调查员"。

Rigel Kentaurus is more commonly known as the alpha star in the constellation Centaurus.

参宿七通常被称为人马座中的阿尔法星。

The other is concave upward with younger rocks of Silurian shale and siltstone toward the center of curvature. The former is called anticline and the latter syncline. The sides of the folds are known as limbs

而另一个褶曲向上凹，较新的志留系页岩和砂岩位于弯曲的中心部位，前者被称为背斜，后者则称之为向斜，褶皱核部两侧叫做褶皱的翼部。

The other is concave upward with younger rocks of Silurian shale and siltstone toward the center of curvature. The former is called anticline and the latter syncline. The sides of the folds are known as limb s

而另一个褶曲向上凹，较新的志留系页岩和砂岩位于弯曲的中心部位，前者被称为背斜，后者则称之为向斜，褶皱核部两侧叫做褶皱的翼部。

The part of the computer that runs the program is known as the processor or central processing unit.

计算机运行程序的部分被称为处理器或中央处理单元。

The cephalochordate amphioxus has been widely regarded as an important model organism which is the clostest living invertebrate relative to the vertebrates.

文昌鱼是现存的与脊椎动物最接近的非脊椎动物，长期以来文昌鱼一直作为研究动物进化和胚胎发育的模式生物，被称为"活化石"。

By choosing to observe stars that are known as Cepheid Variables he could more accurately make measurements.

通过有选择地观察恒星被称为cepheid变数，他能更准确地进行测量。

Of the great nebula called Andromeda. Cepheid variable stars are stars whose brightness changes at

被称为瑟福尔的可变恒星的亮度都是在一个很有规律的时段里改变。

Hubble observations of pulsating stars called Cepheid variables in a nearby cosmic mile marker, the galaxy NGC 4258, and in the host galaxies of recent supernovae, directly link these distance indicators.

哈勃望远镜观测了一个近距离的星系NGC 4258中一类被称为造父变星的脉动变星和当前的超新星，直接比对了这些距离指示器。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。