Việt
sự vận hành đường sắt
Anh
railroad operation
railway overbridge
railway operation
Đức
Eisenbahnbetrieb
Eisenbahnbetrieb /m/Đ_SẮT/
[EN] railroad operation (Mỹ), railway operation (Anh)
[VI] sự vận hành đường sắt
railroad operation, railway overbridge /giao thông & vận tải/