The expanding material, called the supernova remnant, forms fantastic shapes.

这个膨胀的物质被称为超新星遗迹，形成了奇异的形状。

But his influence on later generations of poets was incalculable, not only by releasing poetry from accepted traditions, but by immensely expanding the thematic material.

但他对后世诗人的影响是不可估量的，不仅通过从公认的传统中释放诗歌，而且通过极大地扩展主题材料。