通过对广东中远号空中翻身造船门式起重机的成功研制和应用情况的扼要介绍，着重论述了这种新装备、新技术的几项创新成果的技术特征及其重要意义，包括船段空中连续翻身技术与工艺、双柱塔式刚性支腿与观光型登机电梯设计、门架结构双主梁分层设计制造技术、随动型维修吊机和低压双卷筒电缆供电技术等。

The paper briefly introduced The state about The developing and applicating successfully of Guangdong Zhongyuan shipbuilding gantry crane with function of turning over ship-section, with The emphasis on The discussion about The technical characteristics and practical value of several new inventions of that new lift equipment and technology. Those include The technique of turning over ship-section in series, The designs for rigid leg in type of double columns tower and sightseeing lift to land up The crane, The design and manufacture technology for The gantry double box-beams designing as divided into two layers, The technology for moving repair crane with The upper lift car, and using double cable sheaves technology for supply low-voltage electric power, etc.