?偏位,支距    offset

?偏位轴线    offset alignment

偏位轴线    offset alignment

?船线坐标    offsets

?船线坐标表    offsets table (or sheets)

?海域,外海    offshore

?远洋拖网渔船    offshore (or deep sea) trawler

?海域起重机    offshore crane

?海域探勘    offshore exploration

?海域平台    offshore platform

?海域结构物    offshore structure

?圆拱形断面    ogival section

?油    oil

?油囊,油袋    oil bag

?油浴艉轴管轴承    oil bath type stern tube bearing

?增压油泵    oil booster pump

?油煞    oil brake

?燃油柜    oil bunker

?燃油器    oil burner

?燃油装置    oil burning arrangement

?燃油锅炉    oil burning boiler

?燃油船    oil burning vessel

?油罐,油壶    oil can

?油轮    oil carrier (or tanker)

?油箱    oil cistern

?油布    oil cloth

?耗油量    oil consumption

?油含量计    oil content meter

?油冷活塞    oil cooled piston

?油冷[却]器    oil cooler

?油冷却泵    oil cooler pump

?油冷却    oil cooling

?冷却油泵    oil cooling pump

?冷却油柜    oil cooling tank

?油盅,油杯    oil cup

?油压缸    oil cylinder

?泄油侦控系统    oil discharge monitoring and control system

?泄油柜    oil drain tank

?滴油盘    oil drip pan

?油机    oil engine

?石油探勘    oil exploration

?油水分离器    oil extractor