| 释义 |
- Science and medicine
- Technology and computing
- Aircraft
- Rail transport
- Engines
- Media and entertainment
- Mathematics
- Other
- See also
{{Wiktionary|D4}}D4, D.IV, d4 or variants may refer to: {{TOC right}}Science and medicine- 22-Dihydroergocalciferol, vitamin D4
- D4-isoprostane, a type of isoprostane
- ATC code D04 Antipruritics, including antihistamines, anesthetics, etc., a subgroup of the Anatomical Therapeutic Chemical Classification System
- D04 : Carcinoma in situ of skin ICD-10 code
- Dopamine receptor D4, a human gene
- Octamethylcyclotetrasiloxane, called D4
Technology and computing- D4 (programming language), a programming language of the Dataphor system
- D4 video connector, a type of analog video connector found on Japanese consumer electronics
- D4 framing standard, a framing standard for traditional time-division multiplexing
Aircraft- Albatros D.IV, a World War I experimental German fighter aircraft
- Auster D.4, a 1960 two-seat British light aircraft
- Dewoitine D.4, a Dewoitine aircraft
- Dunne D.4, a 1907 British experimental aircraft
- Fokker D.IV, a World War I German fighter biplane
- LFG Roland D.VI, an aircraft powered by the German Mercedes D.III engine
- Phönix D.IV, a KuKLFT D-class designation aircraft
- Schütte-Lanz D.IV, a 1917 German fighter prototype aircraft
- Siemens-Schuckert D.IV, a 1918 German fighter aircraft
Rail transport- Bavarian D IV, an 1878 German tank locomotive model
- Bavarian D IV (Ostbahn), an 1867 German steam locomotive model
- D4. The tank engine variant of the numerous Victorian Railways Dd class locomotive in Australia
- GSWRI Class D4, a Great Southern and Western Railway Irish steam locomotive
- PRR D4, an 1873 American steam locomotive model
- SP&S Class D-4, a steam locomotives class
Engines- Mercedes D.IV, a World War I German 8-cylinder, liquid-cooled inline aircraft engine
- Mercedes D.IVa, a 1917 German 6-cylinder, water-cooled, inline aircraft engine
Media and entertainment- The D4, a rock band from Auckland, New Zealand
- D4 Princess, a 1999 Japanese manga series
- Dark Dreams Don't Die, a video game by Hidetaka Suehiro for the Xbox One and PC
- D4 (film), by Darrin Dickerson
- D4 - Get Up and Dance, an Indian dance fiction television series
Mathematics- The dihedral group of order 4, otherwise known as the Klein four-group
- The dihedral group of order 8, the symmetry group of a regular 4-gon
- The D4 root system
Other- Nikon D4, a flagship DSLR from Nikon
- Caterpillar D4 a small crawler type tractor built by Caterpillar Inc.
- HMAS Voyager (D04), a 1949 Daring class Australian Navy destroyer
- HMS D4, a 1911 British D class submarine
- Motorway D4 (Slovakia), a motorway in southwestern Slovakia
- Peugeot D4, a French van sold between 1955 and 1965
- The symmetry group of a square - Examples of groups
- Dublin 4, a Dublin postcode
- d4, a 4-sided die
- d4, the second most popular opening move in chess; begins the Queen's Pawn Game
- D4 IATA code for Alidaunia airport
See also{{Letter-Number Combination Disambiguation}} |