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