HY/T 0318-2021 Specifications for sea area use acceptance of reclamation projects surveys

GB/T 17501-2017 Specification for marine engineering topographic surveying GB/T 18314-2009 Specifications for global positioning system(GPS) surveys GB/T 24356-2009 Specifications for quality inspection and acceptance of surveying and mapping products HY 070-2003 Specifications for surveying sea using area HY/T 124-2009 Specifications for sea area use register investigating CH/T 2009-2010 GB 12898-1991 Specifications for the third and fourth order leveling GB/T 12898-2009 Specifications for the third and fourth order leveling GB/T 20257.1-2007 Cartographic symbols for national fundamental scale maps—Part 1:Specifications for cartographic symbols 1∶500 1∶1 000 & 1∶2 000 topographic maps GB/T 20257.1-2017 Cartographic symbols for national fundamental scale maps—Part 1:Specifications for cartographic symbols 1∶500 1∶1 000 & 1∶2 000 topographic maps GB/T 20257.2-2006 Cartographic symbols for national fundamental scale maps—Part 2:Specifications for cartographic symbols 1∶5 000 & 1∶10 000 topographic maps GB/T 20257.2-2017 Cartographic symbols for national fundamental scale maps—Part 2:Specifications for cartographic symbols 1∶5 000 & 1∶10 000 topographic maps GB/T 20257.3-2006 Cartographic symbols for national fundamental scale maps—Part 3:Specifications for cartographic symbols 1∶25 000 1∶50 000 & 1∶100 000 topographic maps GB/T 20257.3-2017 Cartographic symbols for national fundamental scale maps—Part 3:Specifications for cartographic symbols 1∶25 000 1∶50 000 & 1∶100 000 topographic maps HY/T 251-2018 Specifications for cadastre of sea parcel drawing GB 50026-2020 Code for engineering surveying