gantry travel meaning in Chinese

龙门架行驶

Construction techniques for cast - in - situ box girders of light rail transit with overhead launching gantry traveling on ground tracks
地面轨道走行式造桥机现浇轻轨箱梁施工技术
This paper presents the construction techniques , such as using common materials like the universal members to assemble the overhead launching gantry traveling on ground tracks , making full advantages of the bearing capacity of the existing road and manual operation to realize the casting of the prestressed concrete simply - supported box girders of medium spans and double tracks for light rail transit in a safety , high quality and effective way
摘要介绍了采用万能杆件等常规材料拼装的地面轨道走行式造桥机，充分利用既有道路的承载能力采用人工操作安全、优质、高效地现浇城市轻轨中等跨度双线预应力混凝土简支箱梁的施工技术。
? introducing the component of mechanical system of container loading bridge , mainly including hoisting mechanism , gantry travelling mechanism , boom mechanism and trolley mechanism . ? devising the electric control system of container loading bridge , mainly including hoist / gantry control circuit and boom / trolley control circuit
设计了一套集装箱装卸桥的电气控制系统，主要包括供电系统的设计、辅助回路的设计、起升/大车回路的组成及控制、俯仰/小车回路的组成及控制等。