Ben shu yi jian lian yu yan he jie lun xing xu shu fang shi, Jie shao shi pin gong yi he she bei de she ji yuan li he ji suan fang fa, You qi shi yi xie fang da ji shu. Nei rong she ji:dong liang chuan di yuan li, Chuan re yuan li, Zhi liang chuan di yuan li deng.