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近几年来，轻罐车装运石油燃料和溶剂油类的运输中，因易燃液体溢漏而引起的火灾和行车事故时有发生，有的损失相当严重。例如1990年7月3日0201次列车（油龙）运行至襄渝线梨子园隧道内突然起火爆炸列车脱轨，中断行车23天；直接经济损失530多万元，同年10月7日，1717次列车，运行至龙爪站至林口站问，因列车中四辆轻罐车的孔盖没有盖严密，汽油溢出，闸瓦与车轮摩擦产生的火花将溢出的汽油引燃起火，中断了行车，幸亏扑救及时得当，没有造成重大损失。
In recent years, the light tanker shipping of petroleum fuels and solvent oil transport, due to flammable liquid spills caused by fire and traffic accidents have occurred, and some very serious losses. For example, on July 3, 1990, the train (oil dragon) operated suddenly to the tunnel of Pear Orchard in Xiangyu-Yu Line and exploded for 23 days. The direct economic loss was over 5.3 million yuan. In the same year, on October 7, 1717 Train, run to the Longji Station Linkou stop, because the train four light tanker hole cover is not tight cover, gasoline spills, brake shoe and wheel friction spark will overflow gasoline ignition ignited the traffic, fortunately Fight timely and appropriate, did not cause significant losses.