This suggest that the nebulas are aggregates of stars.
这说明星云是恒星得聚集体。
See photos of cosmic pyrotechnics and amazing nebulas.
宇宙烟火和惊奇的烟云。
Different plants depict stars, globular clusters, and even nebulas.
不同的植物描绘出恒星，球状星团，甚至还有星云。
Galactic nebulas are masses of diffuse material within our galaxy.
银河星云是我们星系中得一团团弥散物。
The investigation of dark nebulas has been facilitated by a new discovery.
对暗星云的研究被一种新发现所推进。
Numerous red emission nebulas and blue reflection nebulas are visible throughout the image.
无数红热喷射星云和蓝色反射星云也在此图中清晰可见。
Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness.
旋涡星云因为非常暗，难以得到它们得清晰得光谱。
Such features are known as pulsar wind nebulas.
这种特征被称为脉冲星云。
Among the nebulas like a flying wing
犹如一只飞翔的羽翼
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