planetesimal hypothesis

(astronomy) the nebular hypothesis of the origin of the solar system.

（天文学）关于太阳系起源的星云假说。

kant laplace theory

康德 拉普拉斯星云说

Kant and Laplace nebular hypothesis

康德和拉普拉斯星云说

meteorite hypothesis

陨星假说-太阳系起源

The nebulae, he said, were clouds of atoms and dust.

而星云，他说，是由原子和尘埃构成的云。

This suggest that the nebulas are aggregates of stars.

这说明星云是恒星的聚集体。

The white color indicates clouds at higher altitudes in Jupiter's atmosphere.

白色说明云层在木星大气的高处。

A hypothetical inhabitant of the planet Mars, especially as a stock fictional character.

火星人假想的火星上的居民，尤指小说中的人物

Dr. Johnson said that Wednesday would be a half-holiday.

约翰逊博士说星期三下午放半天假。

Yunnan draws holiday takers

云南吸引假日度假者

New Gypsophila paniculata Cultivars ‘Yunxing 17’ and ‘Yunxing 23’

满天星新品种‘云星17’和‘云星23’

Pretending not to hear, Zhuge Liang said to Liu Bei, "Ma Chao is attacking, and only Guan Yu can defeat him."

诸葛亮假装没听见,对刘备说:"马超来侵犯,唯有云长才能得胜。"

For the Galaxy and the Andromeda nubula, they do not form a pair of galaxies completely isolated from all others.

对银河系和仙女座星云来说，它们并不构成与所有其他星系完全孤立的一对星系。

fictitious year [ star ]

【天】假想年[星体]

If the Milky Way has a very extended corona (much bigger than the one proposed by Spitzer), this corona could strip off gas from the Magellanic Clouds.

假如银河系有一个非常大的星系冕（远远大于史毕哲所想像的），则它将可拉扯出麦哲伦云的气体。

Of, relating to, or characteristic of a nebula.

星云的关于或类似星云的

The quality or condition of being nebulous.

星云状态星云的性质或状态

This halo could extend all the way to the Milky Way's nearest neighboring galaxies, the Magellanic Clouds, scientists said.

科学家说，该日冕可能一直延伸到银河系最近的星系麦哲伦云。