单项选择题
A.布袋破损或着火 B.斗提机链条断裂 C.FU输送机故障 D.布袋结露
A.布袋破损或着火 B.产品水分不合格 C.物料破损率降低 D.布袋结露
A.10PPM B.100PPM C.1000PPM D.10000PPM