打开App
3分钟科普郑州铁路局，惨！
科普我国铁路局12：郑州局- 部分图片来源于网络，侵删 如果您对本视频内容有异议，欢迎在评论区指出 跪求点赞，收藏，十分感谢您的支持！
京局京段SYZ-铁路科普系列13/16
![[科普向]铁路事故的等级划分](http://p26-sign.bdxiguaimg.com/tos-cn-p-0026/2770536a0efa8fcb74937257d8c25a46~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250516003814078211101CC1F79D2C68&requestFrom=704&version_code=80402&x-expires=1778863095&x-signature=riOwPjTULtcz5GfXTfx8FR6o5J4%3D)
App04:34
App04:32
App04:17
App04:52
App04:28
App04:23
App03:56
App04:58
App04:24
App03:20
App04:00
App04:48
App03:49
App03:00
App01:57![[科普向]几种少见的火车车次类型](http://p3-sign.bdxiguaimg.com/tos-cn-i-0004/5a3ae71ed967480fad347dac380a27d3~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=20250516003814078211101CC1F79D2C68&requestFrom=704&version_code=80402&x-expires=1778863095&x-signature=yjte8KozyB4Sr1VVcm98zAJiUUk%3D)
App04:15
