-Method of analysis: the analysis of the relationships, the causes, the result of the situation and adjust the results storage.-Synthesis method: analysis data system according to each stage, each research object. Then the data to draw the existence and limited-Map method: based on map area to adjust storage, then check again, if satisfactory, the update now figures into the shared track adjust storage and movement on the map.-The method of comparison: compare the situation through each stage from which to draw general review.-The method of inheritance: all data, documents, map after collecting us classify, evaluate the reliability of data, documents, maps, which define the material can inherit completely, the document would need to adjust storage, additional, material not likely to use.
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