托福單詞nebula什么意思-nebula詞組短語_例句_同義詞

nebula意思

n.星云，星云狀的星系

形容詞：nebular

復(fù)數(shù)：nebulae

nebula詞組短語

horsehead nebula[天文]馬頭星云

orion nebula獵戶座星云；獵戶星云

planetary nebula行星狀星云

reflection nebula反射星云

emission nebula發(fā)射星云

nebula同義詞

n.

formulation,preparation,symptom,cloud,spot,speckle,dapple

nebula例句

1.Extragalactic nebula is invisible to the naked eye.

我們用肉眼是看不到河外星系的。

2.Cosmic clouds of hydrogen gas and dust abound in this gorgeous skyscape,stretching through Monocerous in the neighborhood of The Cone Nebula.

在這張絢麗的天空美景中，充滿了氫氣和塵埃組成的宇宙星云，一直延伸到錐形星云附近的麒麟座內(nèi)。

3.As our nebula began to collapse under its own gravity and spin faster,a dense clump of matter formed in the center.It's called a protostar.

當(dāng)我們的星云在自身重力作用下崩潰和更加快速地旋轉(zhuǎn)時，星云中心形成了密集的物質(zhì)塊。這叫做原恒星。

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