philosophy

Introduction to social science

Politics, law

E military

F economy

G. Culture, science, education and sports

H. Language and writing

I. Literature

J art

History, geography

Introduction to natural science

Mathematical science and chemistry

P astronomy, geographical science

Q bioscience

Medicine and health

American agricultural science

technology

TB general industrial technology

TD mining engineering

TE oil and gas industry

TF metallurgical industry

Metallurgy and metal technology

Machinery and instrument industry

TJ weapon industry

TK power engineering

TL atomic energy technology

TM electrical technology

Radio electronics and telecommunications technology

TP automation technology and computing technology

TQ chemical industry

Light industry and handicraft industry

Slaughterhouse science

Television water conservancy project

U transportation

V. Aviation and aerospace

X environmental science, labor protection science (safety science)

Z comprehensive books