... 海底管线 offshore pipeline 近海管道建筑 offshore pipeline construction 海上平台 offshore platform ...
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The reel-type lay barge was designed to lower offshore pipeline construction costs by increasing the laying rate and decreasing the time.
卷筒式铺管船可增大铺管速度并减少铺管时间，从而减少海洋管道的建设成本。
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