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图1赛纳河上的巴黎港和莱茵河上的杜伊斯堡港的集装箱码头作为装卸船设备,轨道式集装箱门式起重机与岸边集装箱起重机相比较,优势在结构简单、造价低,初始投资省,缺点是由于不像岸边集装箱起重机那样可以仰起前大梁避让船舶,如果水域较窄,则伸入水域上方的大梁可能碍航;如果船
Figure 1 Port of Paris on the Seine and Port of Duisburg on the Rhine As a loading / unloading equipment, the advantages of the gantry container gantry crane compared with the shore container crane are simple structure, low cost and initial investment The disadvantage is that, unlike the shore container crane, the front girder can be raised to avoid the ship. If the water area is narrow, the girder extending above the water area may be obstructed. If the ship