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报道:6例患者(男4例,女2例,年龄为19～25岁)均在硝铵生产过程中因阀门故障致大量氮氧化物气体(主要为NO_2)逸出,经呼吸道吸入而中
Reported: 6 patients (4 males and 2 females, aged 19 to 25 years) in the ammonium nitrate production process due to valve failure caused by a large number of nitrogen oxide gas (mainly NO 2) escaped, inhaled through the respiratory tract and