KeywordsandExpressionsLegs:樁腿Spudcans:樁靴Jackingsystem:提升系統(tǒng)Rackandpiniongear:齒條與齒 嚙合機構Hydraulicmotor:液壓馬達Electricmotor:電動馬達Jack-uprigs:自升式鉆井平臺4.1 IntroductionAjack-uprigoraself-elevatingunitisatypeofmobileplatformthatconsistsofabuoyanth (共 4549 字) [閱讀本文] >>