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本文介绍的方法是在已铺设的海底管道内插入新管道 ,形成双层管结构 ,达到更新旧管道的目的 ,并对双层管施行安全运行维护措施。
The method introduced in this paper is to insert a new pipe in the laid submarine pipe to form a double pipe structure to achieve the purpose of renewing the old pipe and implement the safe operation and maintenance measures for the double pipe.