Lesson 4 Jack-up Platform

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 ......（本文共 4549 字 ）     [閱讀本文] >>