?过载跳脱    overload trip

?过压防止装置    overpressure prevention means

?超装备船    overrigged vessel

?超速    overspeed

?超速调节器    overspeed governor

?超速限界    overspeed limit

?超速试验    overspeed test

?倾覆    overturning

?船东监造员    owner‘s inspector

?船东试航    owner‘s trial

?金属氧化物油漆    oxide paint

?氧化焰    oxiding flame

?艉柱上部船壳板    oxter plate

?氧乙炔    oxy-accetylene

?氧乙炔吹管    oxy-accetylene blow pipe

?氧乙炔切割    oxy-accetylene cutting

?氧乙炔焰    oxy-accetylene flame

?氧乙炔气管    oxy-accetylene hose

?氧乙炔吹把    oxy-accetylene torch

?氧乙炔焊接    oxy-accetylene welding

?氧乙炔吹管    oxyacetylene blow pipe

?氧气电弧切割    oxy-arc cutting

?氧割器    oxygen cutter

?氧挖削    oxygen gouging

?氧吹管    oxygen lance

?氧吹管切割    oxygen lance cutting

?氧吹管焰割    oxygen lancing

?氧超弧割切    oxygen plasma cutting

?氧气呼吸器    oxygen-breathing apparatus

?氢氧切割    oxy-hydrogen cutting

?氢氧焊接    oxy-hydrogen welding

?抗臭氧橡胶    ozone resistant rubber

?    O型环 O-ring