?油分离器    oil separator

?甲板部更衣室    oil skin locker

?油泥    oil sluddge

?喷油器    oil sprayer

?油[磨]石    oil stone

?滤油器    oil strainer (or filter)

?油池    oil sump

?油开关    oil switch

?注油器    oil syringe

?油舱,油柜    oil tank

?油柜泵    oil tank pump

?油柜通气管    oil tank vent

?油轮    oil tanker

?验油,油验    oil test

?验油器    oil tester

?油密接合    oil tight joint

?油密工作    oil tight work

?油密性    oil tightness

?油韧化    oil toughening

?油水界面计    oil/water interface detector

?油船,加油工    oiler

?油封均压容器    oil-filled pressure compensated container

?油浸变压器    oil-immersed transform

?耐油,防油    oil-proof

?油密舱壁    oiltight bulkhead

?油密舱口盖    oiltight hatch cover

?油密接合,油密接头    oiltight joint

?油密节距(铆接)    oiltight pitch

?油密试验    oiltight test

?[含]油污水    oily water

?油水分离装置    oily water separating equipment

?油水分离计    oily water separator

?过负荷防止装置    OLP (= over load protecter)

?亚米茄航海仪    Omega navigator

?船上试验    onboard test

?甲板上纵梁    on-deck girder

?单面自动焊接    one side automatic welding

?单面焊接    one side welding

?[容许]一舱区浸水船    one-compartment ship

?单面瓦斯电弧焊    one-side electro gas (O.E.G.) welding

?联线    on-line

?联机操作    on-line operation (or on-line)