SPC GB/T 20258.4-2019
SPC GB/T 20258.4-2019 Data dictionary for fundamental geographic information features -- Part 4:Scale of 1:250 000 1:500 000 1:1 000 000 (TEXT OF DOCUMENT IS IN CHINESE)
standard by Standards Press of China, 10/01/2019
standard by Standards Press of China, 10/01/2019