但是什么呢? 一组研究人员得出的结论是：它可能是两个星体碰撞过后的碎片，或者是一个有碟状粉尘围绕的行星。

One group concluded that the object could be the debris from a smashup of two small objects, or it could be a planet surrounded by a disk of dust.

youdao

该机适用于包半具有一定流动性、较松散状，粉尘不大的各种粉末状物品。

The machine is suitable for continuous automatic packing of loose powder products with certain flow ability.

youdao