您見過零點后的春運鐵路貨運站嗎？夜空下重慶地區最大的中歐班列編組站——興隆場編組站會是什么樣，軌道間閃爍的一束光會告訴您答案。
這束光的源頭是一位年輕的彝族鐵路職工，從他左手手電筒發出的光，在列車車廂與軌道間往來閃爍，右手的檢車錘則順著光束的方向，敲打著列車的各個重點部位。
這位坐著慢火車走出大涼山求學，畢業后加入貨車檢車員隊伍的25歲年輕人，希望以自己的專業技能和默默堅守，成為夜空下守護中歐班列列車安全的那束光。（作者：李愛斌、曲虹旭）
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