1983年4月27日,河南商丘某医院一职工从我车间用暖水瓶盛装购得液氮两瓶,装入木箱并带上列车。途中由于不慎,木箱翻倒,暖水瓶破碎,液氮凹溢,白色雾汽腾起,冷气袭人。车厢内乘客不知何物,顿时慌作一团,纷纷奔离现场;车上乘务人员也不知如何处置, April 27, 1983, Henan Shangqiu hospital workers from my workshop with thermos bottles purchased two bottles of liquid nitrogen, into the wooden box and bring the train. On the way due to carelessness, the wooden box upside down, broken thermos, liquid nitrogen overflow overflow, white fog gas, cold air hit people. Passengers inside the car I do not know what, suddenly panic for a group, have fled the scene; car crew did not know how to deal with,