以下为句子列表：
英文: The necessity of the Yangtze Estuary Waterway Administration Bureau's purchasing of specialized trailing suction hopper dredger is analyzed, and suggestions on the way of building of the dredger are put forward.
中文: 摘要对长江口航道管理局购买专用耙吸式挖泥船的必要性进行了分析，并对专用挖泥船建造方式提出了建议。
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