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例1,周××,男,28岁。1990年12月在调试生产染料中间体间苯二胺时,其半成品间二硝基苯在离心过程中,因排风罩有故障,致
Example 1, weeks × ×, male, 28 years old. In December 1990 in the trial production of dye intermediates phenylenediamine, semi-finished products in the process of dinitrobenzene in the centrifugal process, due to exhaust hood failure, caused by