a product made during the manufacture of something else
双语例句
Both of the SSOS and the SSRS are the products produced by the stainless plant. 摘要不锈钢炉碴包括氧化碴与还原碴，二者均为不锈钢制程之副产物。
They can be the by-products of manufacturing processes or simply discarded commercial products, like cleaning fluids or pesticides. 他们可能是制造业程序中的副产物或是被丢弃商业的产品，像清洁液体或杀虫剂。
