self-propelled drilling rig second engineer的意思|示意
美 / /
英 / /
自行钻机二工程师
self-propelled drilling rig second engineer的网络常见释义
自走式钻机大管 * 自走式钻机大管 self-propelled drilling rig second engineer * 高级工程师，海岸警卫船 senior engineer, Coast Guard vessel ..