Changeable and Graceful Classical Charm with Splendid Modern Flavor——On the stage presentation of a newly-presented costume Henan opera Chengying Saves the Orphan;

Based on the current and future situation of civil aviation safety management in China,this paper describes the theoris and the technology systems of the accident prevention,the accident rescue and the safety guarantee,which makes the research of civil aviation safety investigation systematic,theoretic,standard and sustainable.

Mine Safety and Rescue Information System Based On the Component GIS;