GB/T 16901.2-2013 Rules for design of graphical symbols for use in the technical documentation—Part 2:Specification for graphical symbols in a computer sensible form,including graphical symbols for a reference library,and requirements for their interchange
Rules for design of graphical symbols for use in the technical documentation—Part 2:Specification for graphical symbols in a computer sensible form,including graphical symbols for a reference library,and requirements for their interchange