21.Uh, and that yielded a kind of glassy material...

这就制作出来了一种玻璃样的材料。

So you've got these little millimeter and dust size little beads of glassy material recondensing, from that vaporized rock, raining back through the atmosphere all across the entire planet, tens and tens of billions of tons of this stuff.

所以这些几毫米灰尘大小的玻璃材质的小珠子，岩石蒸气在其表面上再凝结，穿过大气层雨滴般落下在整个地球上，这个东西有数十亿。