The Carboniferous non-structural traps in Tazhong area can be divided into stratigraphic traps,lithologic traps and combination traps according to their genesis and shapes.

Closed reduction and percutaneous Kirschner wire fixation for treating fracture of surgical neck of humerus in adolescent;

Closed reduction and micro-incision cannulated screw fixation for treating femoral neck fracture in elderly patients;

Treatment of distal tibial comminuted fractures with closed reduction and interlocking nail;

Treatment of distal femoral fracture with retrograde interlocking intramedullary nail and close reduction with help of C-arm X-ray machine;

Treatment of mid-third clavicle displaced fractures by close reduction and percutaneous internal fixation with K-wires;

Methods To correct the abnormality of fracture in close reduction under the fluroscopy and fixation fracture with external fixator.

The formation was analysed by chart stacking technology along the sealing surface of the trap,a large tectonic lithologic complex trap was found in the top of the formation.

It is proved that this public key cryptosystem based on compound encryption has not been influenced on time complexity and space complexity,but it has more security t.