product line / production line 分别是什么意思

Question

其中有一个是产品种类的意思，但是我分不清是哪一个了？

Answer 1

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。

参考资料：http://sh.dict.cn/search/?q=production+line+

Answer 2

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

Answer 3

product line-生产线
productiong line-流水线