waste product
noun [ C ] uk/ˈweɪst ˌprɒd.ʌkt/ us/ˈweɪst ˌprɑː.dʌkt/
无用的副产品;工业垃圾
a substance of no value or use that is made during a process in which something useful is produced
Cadmium is a toxic waste product of the electronics industry. 镉是电子工业产生的一种有毒废物。
Compare: by-product
See also: product (THING MADE)waste noun