累计不良率
Cumulative defective rate
以上为机器翻译结果，长、整句建议使用 人工翻译 。
文章不仅证实了在累计平均不良率上存在着学习效应，还证实了累计平均工时也存在着学习效应，但是前者的进步率要远大于后者。
The article confirms learning curve exists not only in the average bad rate, but also in the average man-hour, but the former progress rate is much larger than the latter.
youdao
应用推荐
模块上移
模块下移
不移动