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.

辞典例句

This suggest that the nebulas are aggregates of stars.

这说明星云是恒星的聚集体.

辞典例句

Galactic nebulas are masses of diffuse material within our galaxy.

银河星云是我们星系中的一团团弥散物.

辞典例句

Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness.

旋涡星云因为非常暗,难以得到它们的清晰的光谱.

辞典例句

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.

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