SL 73.7-2003 Flood and drought relief diagrams

This standard specifies the level and specifications of symbols, colors and annotation fonts for thematic elements of flood control and drought relief on flood control and drought relief maps, as well as the principles, requirements and basic methods for using this standard. This standard is applicable to the compilation of 1:50,000 scale electronic maps, printed maps and other related map types in flood control and drought relief maps. SL 73.7-2003 Flood Control and Drought Relief Map Format SL73.7-2003 Standard Download Decompression Password: www.bzxz.net