"铁路货运编组站" can be translated into English as "Railway Freight Marshalling Yard" or "Railway Freight Classification Yard".
"Railway" refers to the rail transport system.
"Freight" indicates that it is related to cargo or goods transportation.
"Marshalling Yard" or "Classification Yard" specifically describes the facility where railway cars are sorted, grouped, and re-assembled into trains according to their destinations or other criteria.
Both translations are commonly used and convey the same meaning.