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門式起重機又名龍門起重機,俗稱龍門吊門吊,是建立在龙门之上的起重机,而龙门是一种能跨越巨大物体的结构。門式起重機能够吊起一些較重的物體。

用于建造英国航母伊麗莎白女王號航空母艦的龙门起重机
位於上海港的龍門起重機

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