从英文解释能看出意思的差别Product line是a particular kind of product or merchandise 指的是生产线,是一类产品Production line是mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it意思是流水线、装配线
product line: n. 生产线production line: n. 生产线,流水线,装配线例句与用法: 1. Cars are checked as they come off the production line. 汽车经装配线组装完毕后即进行校验。 2. He works on the production line. 他在生产流水线上干活。