This standard is applicable to the drawings of hydraulic construction, survey, hydraulic machinery, electrical and soil and water conservation in water conservancy and hydropower projects.
SL 73.1-2013 Referenced Document
GB/T 148 Writing paper and certain classes printed matter-Trimmed sizes-A and B series
SL 73.1-2013 history
2013SL 73.1-2013 Drawing standard of water resources and hydroelectric engineering for basic drawing
1995SL 73.1-1995 Water conservancy and hydropower engineering drawing standards Basic drawing