Lesson 4 Jack-up Platform

KeywordsandExpressionsLegs:桩腿Spudcans:桩靴Jackingsystem:提升系统Rackandpiniongear:齿条与齿 啮合机构Hydraulicmotor:液压马达Electricmotor:电动马达Jack-uprigs:自升式钻井平台4.1 IntroductionAjack-uprigoraself-elevatingunitisatypeofmobileplatformthatconsistsofabuoyanth ......     (本文共 4549 字 )     [阅读本文]>>




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