A Study of the Remaining Volume Kept in Russias of Records of the West by Yi Jing the Monk of Tang Dynasty;

The Mohist thoughts of harmony consist in upholding righteousness,and the equal harmony regulated by the righteousness.

By the use of lithologic cyclicity,marker beds and coal seam and strata combination features,correlated coal seams and strata in Shangyi coalfield.

Sedimentary response of the Shangyi basin,northwestern Hebei,to the Late Jurassic tectonism;