Việt
sự bôi trơn quay vòng
sự bôi trơn tuần hoàn
Anh
recirculating lubrication
recirculation lubrication
circulation lubrication
circulation oiling
recirculating lubrication, recirculation lubrication /cơ khí & công trình/
circulation lubrication, circulation oiling, recirculating lubrication, recirculation lubrication