Abutment pressure distribution law of fully-mechanized face in soft,thick coal seam;

Failure distribution law of a machining center and its study;

Structure genetic mechanism and distribution law of collapse pillars in one coal mine;

Study on distribution regularity of air pollution in Fuxin City;

Study on distribution regularity of the air pollution in Guangzhou City;

Analysis of the distribution regularity and the salinized soil expansion action of salinized soil in oblique fine soil plain;

Basic characteristics and distribution rule of oil - gas reservoir forming assemblage in the southern margin of Junggar Basin;

Research on distribution rule of the stray current in the pits;

The distribution rule and ore-finding direction of gold deposit in northern Beipiao, Liaoning;

Genetic types and distribution pattern of natural gases in Gubei buried-hills,Jiyang depression;

Origin and association types of lake delta front sandstones and their distribution patterns of Triassic Yanchang Formation in Ordos Basin, China;

Study on the root distribution pattern and biomass of the cultivated Glycyrrhiza uralensis;