What are the relevant specifications for aerial photogrammetry? What categories can it be divided into? What is the main content?

1:500 1:1000 1:2000 scale topographic map aerial photography specification GB 6962--86

1:500 1:1000 1:2000 topographic map aerial photogrammetry industry Specification GB 7930--87

1:500 1:1000 1:2000 Topographic map aerial photogrammetry field specification GB 7931--87

1:25000 1:50000 1: 100000 topographic map aerial photogrammetry industry specifications GB 12340--90

1:25000 1:50000 1:100000 topographic map aerial photogrammetry field specifications GB 12341--90

1:25000 1:50000 1:100000 Topographic map schema GB 12342--90

1:25000 1:50000 Topographic map drawing specification GB 12343--90

1: 5000 1:10000 Field specifications for aerial photogrammetry of topographic maps GB/T 13977--92

1:5000 1:10000 Field specifications for aerial photogrammetry of topographic maps GB/T 13990--92

Framework and numbering of national basic scale topographic maps GB/T 13989--92

Engineering photogrammetry specifications GB 50167--92

1:5000 1:10000 Topography Figure Schema (Revised) GB/T 5791--93

Photogrammetry and Remote Sensing Terminology GB/T 14950--94

1:500 1:1000 1:2000 Topographic Map Specification for digital mapping of aerial photogrammetry GB 15967--1995

Quality requirements for digital line topographic maps and digital elevation models GB/T 17941.1-2000

Find out the main content yourself. The classifications are generally internal and external.