semi-submersible drilling rig semi-submersible drilling unit
Related Translations:
潜: Ⅰ动词1.(隐在水下) go underwater; hide under water; dive 短语和例子他潜入水底找寻尸首。 he dived into the water to look for the dead body.2.(隐藏) hide3.[书面语](涉水) wade across water4.[书面语] (埋葬) bury5.[书面语] (逃亡) fl