4Nlk7jS9tGb v.huanqiu.comarticle硬核科普！中国最长火车多少节？/e3pmh2fmu/e3pmh2g69<article><section data-type="rtext"><p><video controls src="https://v6.huanqiucdn.cn/4394989evodtranscq1500012236/acb9b7755145403694112012556/v.f100830.mp4" data-alt="" poster="https://v6.huanqiucdn.cn/4394989evodtranscq1500012236/acb9b7755145403694112012556/sampleSnapshot/sampleSnapshot_10_0.jpg?imageView2/2/w/1260"></video></p></section></article>1754271923378责编：侯自聪<a href="http://v.people.cn/n1/2025/0802/c431305-40535083.html" >人民网</a>175427192337811[]//img.huanqiucdn.cn/dp/api/files/imageDir/e4e2d30cd4cc508d25fd1d0b37064994u5.jpg{"email":"houzicong@huanqiu.com","name":"侯自聪"}