MDS621.4350

Wording: TechnologyEngineering and allied operationsApplied physicsHeat engineeringInternal combustion enginesRocket EnginesNot set

Dewmoji: πŸ’‘πŸ”©πŸ­????

0
Information
216,948
ℹ️
1
Philosophy and Psychology
229,419
πŸ’­
2
Religions
562,779
πŸ™
3
Social sciences
1,169,921
πŸ‘«
4
Language
177,109
πŸ’¬
5
Natural sciences and mathematics
380,441
πŸ”¬
6
Technology
844,132
πŸ’‘
7
The arts
857,504
🎨
8
Literature
1,201,263
πŸ“š
9
History and Geography
703,933
πŸ—ΊοΈ
60
General Technology
8,586
πŸ’‘
61
Medicine and health
277,111
πŸ’‰
62
Engineering and allied operations
140,868
πŸ”©
63
Agriculture & related technologies
78,723
🌱
64
Home and family management
152,587
🏠
65
Management and auxiliary services
131,640
πŸ‘”
66
Chemical Technology
17,794
πŸš€
67
Manufacturing
7,692
πŸ“¦
68
Manufacture of products for specific uses
18,201
πŸ”¨
69
Building
10,930
πŸ‘·
620
Engineering
19,566
πŸ”©
621
Applied physics
42,616
🏭
622
Mining Engineering and Mines and Mineral Resources
3,424
πŸ•³
623
Military Engineering and Marine Engineering
13,937
βš“
624
Civil Engineering
7,390
πŸŒ‰
625
Road and Railroad
5,150
πŸ›€
626
unassigned since 1911 7th Edition (was Canal Engineering)
72
🀷
627
Hydraulic Engineering
1,678
🌊
628
Sanitary; Municipal
6,571
🚽
629
Other Branches
40,464
🌿
621.0
1,143
621.1
Steam engineering
567
621.2
Hydraulic machinery
238
621.3
Electrical, magnetic, optical, communications, computer engineering; electronics, lighting
30,327
621.4
Heat engineering
3,663
621.5
Pneumatic machinery and Compressed air and Refrigeration and refrigerating machinery
415
621.6
Fans (Machinery) and Pumping machinery
142
621.7
Production engineering and Factories and Machine-shop practice
155
621.8
Machine Engineering
2,398
621.9
Machine-tools
1,300
621.40
873
621.41
Calorie engines
1
621.42
Stirling Engines
15
621.43
Internal combustion engines
631
621.44
Geothermal Energy
54
621.45
Windmills
120
621.46
Electric Motors
215
621.47
Solar Energy
341
621.48
Nuclear Engineering
1,029
621.49
1
621.430
15
621.431
General theory of gas or gasoline engines
1
621.432
Two-Stroke Engines
2
621.433
Gas Turbines
42
621.434
Small Engines
48
621.435
Rocket Engines
52
621.436
Diesel Engines
77
621.437
16
621.438
3
621.439
621.4350
2
621.4351
621.4352
3
621.4353
621.4354
621.4355
621.4356
38
621.4357
621.4358
621.4359
621.43500
621.43501
621.43502
621.43503
621.43504
621.43505
621.43506
621.43507
621.43508
621.43509
2

Related Tags

"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

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Wording

1922 Edition
Do NOT copy from the copyrighted sources. 1922 edition here, in absurd phonetic English. Use standard spelling.
Modern Language
Modern wording should be based on the Free Decimal System or on the 1922 edition of Dewey. Language and concepts may be modernized. Do not use an in-copyright source.
Emoji
A single emoji for this DDC Class. The full emoji will be composed of the emojis from the top level to this one.