| 释义 |
- Military American bombers German and Austro-Hungarian aircraft Submarines
- Civilian transportation Roads Trains Other
- Other Biology and Medicine Banking Computing Engines Music Miscellaneous
{{wiktionary|B3|b3}}B3, B03, B.III or B-3 may refer to: {{TOC right}}MilitaryAmerican bombers- Keystone B-3, a biplane bomber of the United States Army Air Corps
- Next-Generation Bomber (2018 Bomber), next bomber follow-on to the B-2 stealth bomber program
- Long Range Strike Bomber program, successor program to the 2018 Bomber program
- Northrop Grumman B-21, a successor aircraft to the B-1 and B-52 bombers
German and Austro-Hungarian aircraft- AEG B.III, a German reconnaissance aircraft
- Albatros B.III, a German Idflieg B-class designation aircraft
- Aviatik B.III, a 1916 Austro-Hungarian reconnaissance aircraft
- Bensen B-3, a Bensen aircraft
- Euler B.III, a German Idflieg B-class designation aircraft
- Fokker B.III (disambiguation), two aircraft models
- Halberstadt B.III, a German Idflieg B-class designation aircraft
- Kampfgeschwader 54, from its historic Geschwaderkennung code with the Luftwaffe in World War II
- Lohner B.III
- LVG B.III, a 1910s German two-seat trainer biplane
Submarines- USS B-3 (SS-12), a United States Navy submarine
- HMS B3, a British B class submarine of the Royal Navy
Civilian transportationRoads- B3 road (Kenya)
- B3 road (Namibia)
- Bundesstraße 3, a German national highway
Trains- Alsace-Lorraine B 3, an Alsace-Lorraine P 1 class steam locomotive
- Bavarian B III, an 1852 German steam locomotive model
- NCC Class B3, an 1890 Irish 4-4-0 passenger steam locomotive
- NSB B3 (Class 3), Norwegian railway carriages
- PRR B3, an American electric Pennsylvania Railroad locomotive model
Other- B3 (New York City bus) serving Brooklyn
- the International Air Transport Association code for Bellview Airlines
OtherBiology and Medicine- ATC code B03 Antianemic preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System
- B3 (classification), a medical-based Paralympic disability sport classification for blind sport
- B3 domain, a highly conserved plant DNA-binding domain Procyanidin B3, a plant phenolic compound
- Prodelphinidin B3, a plant phenolic compound
- Vitamin B3 (niacin)
Banking- B3 (Brasil, Bolsa, Balcão), the company that was formed as a merger of BM&F Bovespa and CETIP
Computing- a TCSEC security class in the Trusted Computer System Evaluation Criteria
- "B3 Coin" a cryptocurrency
Engines- a type of four-cylinder Mazda B engine
- Benz B.III, an engine powering the 1914 Friedrichshafen FF.33 German aircraft
Music- B3 (band), an American boy band most popular in Germany
- B3 (EP), a 2012 EP by alternative rock band Placebo
- Hammond B-3, an electric organ made by Hammond
Miscellaneous- B3, the Bochvar logic
- B03, Alekhine's Defence chess code
- B3 oil field, an oil and gas field in the Baltic sea
- Model B3 chair, a 1925 German Wassili designer chair
- a subclass of B-class stars in stellar classification
- a permission code for Town and country planning in the United Kingdom
- an ISO 216 international standard that defines paper size
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