Based on lightning location data of lightning monitoring network in Guizhou Province in recent eight years,the effective detection radius of a station and the e
Based on the investigation data of PHC content in Jiaozhou Bay,China during 1980- 1981,the distribution of PHC content in the bottom water of Jiaozhou Bay was a
Using the GIS spatial analysis tool,the spatial distribution situation and spatial network structure of 56 tourist attractions graded AAA and above in Binzhou C