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防爆开关为何不防爆？●周庚洪遭殃一家三代私自生产鞭炮●曹效泽受伤学校围墙倒塌８名学生１９９８年５月２８日下午２时左右，江苏金坛市一化工生产企业的生产现场发生一起因防爆开关内部放电，产生明火引燃生产现场空气中的可燃气体引起爆炸，造成４亡数伤的重大事故。...
Explosion-proof switch why not explosion? ● Zhou Genghong plagued a family of three generations to produce firecrackers ● Cao Xiaoxei wounded 8 school students collapsed on the walls of the school May 28, 1998 At around 2 pm, a chemical manufacturer in Jintan City, Jiangsu Province, produced a fire at the production site due to internal discharge of the explosion-proof switch Combustible gases in the air at the production site of the burning plant exploded, causing 4 fatal injuries. ...