This book mainly refute the annotation of Zheng Xuan and the illumination of Kong Yingda. It is a important works among liji research literatures in Qing Dynasty.
该书对《礼记》郑玄《注》、孔颖达《疏》作了大量的辩驳，是一部重要的清代《礼记》研究著作。
3
Mukence watershed is located in the East Rift Valley and belongs to the Liji Mudstone area with more complex and unfavorable geologic conditions and weak stratum.