Assembly line and Treadmill

Assembly line noun - Mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it.

Treadmill and assembly line are semantically related. In some cases you can use "Treadmill" instead a noun phrase "Assembly line".

Treadmill noun - An established and often automatic or monotonous series of actions followed when engaging in some activity.

Assembly line and treadmill are semantically related. You can use "Assembly line" instead a noun "Treadmill".