This standard applies to planning, project proposals, feasibility studies, preliminary design, bidding design, construction drawing design and other planning and design of water and soil conservation regional management, water and soil conservation watershed management, water and soil conservation ecological environment construction, development and construction project water and soil conservation plans and other projects. Cartography of stages.
SL 73.6-2001 history
2015SL 73.6-2015 Drawing standard of water resources and hydroelectric engineering for soil and water conservation drawing
2001SL 73.6-2001 Drawing standards of soil and water conservation