Comprehensive recovery technology of the old workings abandoned mineral resources;

The pollution scope is generally equivalent to the store-up water area distributed in the old pits, and the pollution compositions in the Ordovician limestone underground water similar to the high content compositions in the store-up water.

By improving mining method,reducing the ore loss and dilution rate,positively recycling remnant orebody with remained old workings and improving ore-dressing technology,Mt.

Discuss on tailored suit′s armhole & suitable wear;

Research on the Method of Grading Armhole;

Defining the shape form of the body armhole, by way of the method of experiment, the paper seeks the interrelationship between the material thickness and the easing of the two\|piece sleeve.

Selecting two geologic models:dome model with homogeneous overlying medium and dome and fault model with overlying fractured formation,over which a ordinary 3 D seismic data acquisition,processing and analysis have been done and following results are obtained:① seismic physical model experiment can fully model 3 D geologic structural body;② wavefield feature of eac.

This paper introduces various data about Longshan dome (brachy-anticline) in Xinshaocounty, Hunan Province, China, and demonstrates that the dome (brachy-anticline) doesnot exist there on the basis of the definitions of dome and brachy-anticline, geologic sectionsand occurrence of the strata of Longshan area, as well as proposes a new viewpoint on thestructure of the district.