GB/T 21561.1-2018轨道交通机车车辆受电弓特性和试验第1部分:干线机车车辆受电弓国家标准
英文:Railway applications—Rolling stock pantographs characteristics and tests—Part 1:Pantographs for mainline vehicles GB/...
英文:Railway applications—Rolling stock pantographs characteristics and tests—Part 1:Pantographs for mainline vehicles GB/...