| 释义 |
- Transportation
- Computer technology
- Video games
- Other
{{Selfref|For the Wikipedia U3 criterion for speedy deletion, see Criteria for speedy deletion#U3.}}U3 or U-3 may refer to: {{NOTOC}}Transportation- U3, an underground rapid transit line in many major German/Austrian cities:
- U3 (Berlin U-Bahn)
- U3 (Frankfurt U-Bahn)
- U3 (Hamburg U-Bahn)
- U3 (Munich U-Bahn)
- U3 (Nuremberg U-Bahn)
- U3 (Stuttgart Stadtbahn)
- U3 (Vienna U-Bahn)
- Avies (IATA code: U3), an Estonian airline
- Cessna U-3, the military model of the Cessna 310 aircraft
- German submarine U-3, one of several German submarines
Computer technology- U3 (software), a design specification for USB storage, created by U3, LLC
- U3, a speed class for Secure Digital (SD) cards
Video games- Exodus, a 1983 video game
- Drake's Deception, a 2011 video game
Other- U3, an unemployment figure released by the United States Bureau of Labor Statistics
- Small nucleolar RNA U3, a type of non-coding RNA
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