MSC.1/Circ.1348 Guidelines For The Assessment Of Technical Provisions For The Performance Of An In-Water Survey in Lieu of Bottom Inspection in Dry-Dock to Permit One Dry-Dock Examination in Any Five-Year Period for Passenger Ships Other than RO-RO Passenger Ships 对客船(客滚船除外)执行一次水下检验替代干坞内船底检查以允许在任何5年期内进行一次干坞检查的技术规定评定指南