短语词组短语DMR Defective Material Report 材料缺陷报告defective fluorite type material 缺陷萤石型材料defective material report 材料缺陷报告;缺陷材料报告;不合格材料报告Material Defective 来料MATERIAL DEFECTIVE PIECES PER MILLION 来料百万分之缺陷率 返回 defective material