According to historical records and Two Year Lows·Decrees for Passes inscribed on bamboo slips of the Han Dynasty from zhangjiashan,the object they limited was the dukes and princes out of the passes,and it was not r.

It concerns how to cognize the text format of the Han period decrees and the different understanding of “sending horses in tricks”,“selling horses at prices higher than the stipulated in decrees” the re-arrangement of “the decrees on horses”in Decrees for Passes by Prof Chen Wei.

The deposit in bioclastic limestone at the bottom of Nanjinguan Formation of Lower Ordovician at Gaoluo-Xiping is worth exploration.

The Designment and Development of Tianjin Customs Managing Technological Service System;

The Designment and Development of the Tianjin Customs Decision-supported System;

Analysis of Institutional Changing and Economics about Modern Tianjin Customs

Approach Inspector General Frederick William Maze s policy to keep the customs integrity in Tianjin customs incident;