원심분리기

Centrifugal Separator

원심정유기

Centrifugal Oil Purifier

원심펌프

Centrifugal Pump

원양구역

Ocean Going Sea

원양선

Ocean Going Vessel, Seagoing Vessel

원유

Crude Oil

원유세정

Crude Oil Washung

원자력선

Nuclear Ship

원자력잠수함

Nuclear Submarine

원자로

Reactor