Category:CLC U269
Chinese Library Classification
A Marxism, Leninism, Mao Zedong Thought and Deng Xiaoping Theory · B Philosophy, Religion · C General Social Sciences · D Politics, Law · E Military · F Economics · G Culture, Science, Education, Sports · H Language, Writing · I Literature · J Art · K History and Geography · N General Natural Sciences · O Mathematical Sciences and Chemistry · P Astronomy and Earth Sciences · Q Biological Sciences · R Medicine, Health · S Agricultural Sciences · T Industrial Technology · U Transportation · V Aviation and Aerospace · X Environmental Science, Safety Science · Z General Books
U-* general theory of transportation · U-40 · U-49 · U-9 transport economy · U1 Comprehensive Transportation · U2 Railway Transportation · U4 Road Transport · U6 Waterway Transportation · U8 Aviation Transportation
U2-09 · U2-092 · U2-28 · U2-40 · U2-43 · U2-61 · U2-65 · U2-9 railway transportation economy · U21 Railway Line Engineering · U22 Electrified Railway · U23 Specialized Railway · U24 Railway Bridge and Culvert Engineering · U25 Railway Tunnel Engineering · U26 Locomotive Engineering · U27 Vehicle Engineering · U28 Railway Communication and Signaling · U29 Railway Transportation Management Engineering
U26-65 · U260 · U261 · U268 · U269
A Marxism, Leninism, Mao Zedong Thought and Deng Xiaoping Theory · B Philosophy, Religion · C General Social Sciences · D Politics, Law · E Military · F Economics · G Culture, Science, Education, Sports · H Language, Writing · I Literature · J Art · K History and Geography · N General Natural Sciences · O Mathematical Sciences and Chemistry · P Astronomy and Earth Sciences · Q Biological Sciences · R Medicine, Health · S Agricultural Sciences · T Industrial Technology · U Transportation · V Aviation and Aerospace · X Environmental Science, Safety Science · Z General Books
U-* general theory of transportation · U-40 · U-49 · U-9 transport economy · U1 Comprehensive Transportation · U2 Railway Transportation · U4 Road Transport · U6 Waterway Transportation · U8 Aviation Transportation
U2-09 · U2-092 · U2-28 · U2-40 · U2-43 · U2-61 · U2-65 · U2-9 railway transportation economy · U21 Railway Line Engineering · U22 Electrified Railway · U23 Specialized Railway · U24 Railway Bridge and Culvert Engineering · U25 Railway Tunnel Engineering · U26 Locomotive Engineering · U27 Vehicle Engineering · U28 Railway Communication and Signaling · U29 Railway Transportation Management Engineering
U26-65 · U260 · U261 · U268 · U269