短語詞組短語fraction -defective chart 微量不良率圖critical fraction defective 臨界不良率sample fraction defective 樣本不良率quality fraction defective 質(zhì)量不郃格率Lot fraction defective 批不良率part fraction defective 元器件缺陷率multiple fraction defective sampling [統(tǒng)計]多抽樣比不完全抽樣fraction defective analysis 不郃格情況分析lot tolerance fraction defective 批容許廢品率;批容許不郃格率 返回 fraction defective