Title: Jiao ni kan dong tian gong kai wu
Description: Ben shu cheng xian le dang shi de chuan tong nong ye he shou gong ye de ji shu, Luo lie le guan cha suo de er hua chu de cao zuo tu, You ci le jie yu xian dai she hui xi xi xiang guan de shi pin ye, Fu zhuang ye, Zhi zao ye de fa zhan shi wei.
Subjects: Nong ye shi, Shou gong ye shi, < tian gong kai wu>
Places: Zhong guo
Time periods: Gudai