spherical aggregate

例句：

1. 1. The mineral deposit is composed of spherical aggregates.
   这个矿床由球状聚合体组成。
2. 2.The scientists found that the spherical aggregates were made up of carbon nanotubes.
   科学家们发现，这些球状聚合体是由碳纳米管组成的。
3. 3.The spherical aggregates are used in various applications such as catalysis and separation.
   球状聚合体被用于各种应用中，如催化和分离。