The filaments have widths that suggest they are formed as shockwaves from exploding stars travel through the medium, sweeping up and compressing the interstellar dust and gas.
丝状尘埃云的宽度暗示它们是形成自一些通过中等大小正在收缩的星际尘埃和气体的恒星然后爆发后的激波而成。
We have seen the Twin Towers collapse hundreds of times on TV. The steel and glass skyscrapers exploding like a bag of flour, the dust and smoke pluming out across Manhattan.
在电视上，我们曾无数次地看着世贸双塔轰然倒地：这个由钢筋混凝土铸成的摩天大楼如一大包爆炸了的面粉，烟尘滚滚弥漫了整个曼哈顿。
A region of gas and dust from exploding stars in the Milky Way galaxy starts to collapse under its own gravity, forming a small star surrounded by a disk of rocky material and gas.
银河系漩涡展开过程中某些区域的星群之气体尘埃在引力作用下，形成由岩石物质和气体包围的小行星。
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