self-propelled oil rig deck officer 自走式石油钻井平台甲板高级船员

self-propelled drilling rig captain 自走式钻机队长

self-propelled drilling rig first mate 自走式钻机大副

self-propelled drill rig 自航式钻井平台

self-propelled workover rig 自走式修井机

self-propelled drilling rig mate 自走式钻机大副

self-propelled drilling rig chief engineer 自走式钻机总工程师

self-propelled drilling rig first engineer 自走式钻机工程师

self-propelled drilling rig second engineer 自走式钻机大管