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.
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。
Schools now receive an academic progress rate, or APR, from the National Collegiate Athletic Association.
学校现在从国家大学运动协会获得一个学术进步比率，即apr。
Progress rate measurement system of an EPC project is essential to improve the management level of the EPC project.
EPC项目进度测量系统是提高EPC项目管理水平的重要基础工作。
Progress rate measurement system of an EPC project is essential to improve the management level of the EPC project.
EPC项目进度测量系统是提高EPC项目管理水平的重要基础工作。
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