The goaf gas drainage is carried out by drilling holes with strike and middle-high-order at the π type caving coal face in the inflammable and high coal seam.

It is one of the most common ways to study and illustate seam pattern and its space position that knowing about seam strike and dip angle according to the three*.

In this paper,the clastic model is used to study the reason of the large determinate error of the horizontal displacement on strike section in mining subsidence By correcting the traditional theoretical model,the new horizontal displacement law on strike section and the conclusion that the influence propagationangle on strike direction is unusually 90°are obtained.

Construction of a society of overall well-being and development trend of Chinese medical and health care;

Determination of Highway Arterial Trend in Highway Network Planning Area;

Trend of Chinese Agricultural Policy in New Era;

Chen et al deemed that for an image subblock with a single straight edge, the corresponding DCT (discrete cosine transform) coefficient energy compaction orientation and the spatial edge orientation were perpendicular to each other [2].

Meanwhile, the sufficient and necessary condition for the orientation of an arbitrary simple polygon is given.

The unbalance financial distribution implies the overall orientation of the governments.

Development and Tendency of Quality Breeding under New Situation of Commercial Maize Breeding;

The Present Situation and the Coming Tendency of Agricultural Economical Structure in 3 Regions of China;

Development Tendency of Public English Teaching;

The Process, Problems and Trends of Curriculum Reform of Primary School in the People s Republic of China;

It also analyzes the trends for their running the universities.

These factors not only directly influenced the adjustments of Bush s security strategy in his first term, but will also determine to a large extent the trends of the.