nebula造句

The size of the nebula at this stage is inversely proportional to its mass.
这个阶段星云的大小与其质量成反比。

A powerful telescope can resolve a nebula into stars.
一架高性能的望远镜能从星云中分辨出星球来.

A nebula is really a discrete mass of innumerous stars.
一团星云实际上是无数星体不连续的集合体.

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