by-product aggregate

例句：

1. 1.The production of this chemical requires a significant amount of by-product aggregate.
   这种化学品的生产需要大量的副产品聚合体。
2. 2. The company's research team is working on developing a new by-product aggregate to improve the efficiency of the process.
   公司的研发团队正在开发一种新的副产品聚合体，以提高过程的效率。
3. 3. The by-product aggregate can be used as a raw material for various products, such as fertilizers and plastics.
   副产品聚合体可以作为各种产品的原料，如肥料和塑料。