Title: Dian zi kou an shi yong gong neng
Description: Ben shu chan shu xin yong hu ru wang, Dian zi kou an ka ban li deng ji chu ye wu, Tu chu jie shao dian zi kou an zhi fa xi tong, Yu lu ru xi tong(QP xi tong)Yi ji qi ye guan li lei xi tong deng qi ye chang yong xi tong.
Subjects: Dian zi zheng wu, Ying yong, Hai guan guan li, Kou an guan li
Places: Zhong guo