音标：['kweisɑ:] ；柯林斯词典等级：1 级；

n. 类星射电源, 类星体

n. a starlike object that may send out radio waves and other forms of energy; many have large red shifts

词型变化：名词复数形式 : quasars

词性分布：

名词100%

quasar的用法和样例：

例句

用作名词(n.)

The fuzzy object near top quasar image is the foreground galaxy.靠近顶部类星体形象的模糊物体就是前景星系。
They do so by combining quasar spectra with numerical simulations of structure formation.他们的做法是将类星体光谱和结构形成的数值模拟结果结合在一起。

【近义词】

quasi-stellar radio source类星射电源

Supermassive Black Holes 超大质量黑洞 - 4

This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally feeding on the center of a

发表于:2018-12-07 / 阅读(250) / 评论(0)

超大质量黑洞

美国英语听力80篇2 Lesson34

[00:05.62]34) Ancient Quasar [00:11.96]Astronomers have discovered what they say is one of the earliest known structures ever to form in the universe. [00:20.82]It is a star-like object called a quasar. [00:24.76]Quasars are very large. [00:27.69]The

发表于:2018-12-26 / 阅读(32) / 评论(0)

美国英语听力80篇

Supermassive Black Holes 超大质量黑洞 - 13

Silk realized that the energy from this newly formed quasar would create intense temperature changes in the surrounding gas. This would cause the gas around the black hole and its newly formed quasar

发表于:2019-01-02 / 阅读(307) / 评论(0)

超大质量黑洞

SSS 2009-12-03

Which came first, black holes or galaxies? Its been a bit of a conundrum for astrophysicists. Black holes are known to devour matter, but did they arise before or after, the galaxies in which they exist? Now, scientists say it looks like the black ho

发表于:2019-01-08 / 阅读(46) / 评论(0)

Scientific American(十二)月

英语听力：2013-11-01 地平线：黑洞吞噬—19

We now know this light is produced by the rotating disk of matter, spinning round the edge of the black hole at the heart of the Cygnus A galaxy, waiting to be devoured. It means that against all popular expectations, the brightest sources of light i

发表于:2019-01-23 / 阅读(24) / 评论(0)

探索与发现2013年

60秒科学:Black Hole Quasar Building Galaxy

Black Hole Quasar Building Galaxy A study in the journal Astronomy Astrophysics finds that a distant quasar, powered by a black hole, is building a galaxy that will eventually surround the black hole. Cynthia Graber reports Which came first, black ho

发表于:2019-01-30 / 阅读(158) / 评论(0)

60秒科学

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学英语单词

atomic scattering factor