| 释义 |
PA1 or PA-1 may refer to: - Pad Abort Test 1, an Apollo flight
- Pad Abort 1 (Orion), an Orion test flight
- {{ushr|Pennsylvania|1}}
- U.S. Route 1 in Pennsylvania
- Muhammed Akbar Khan, Pakistan Army general
- ALCO PA, train locomotive
- The PA1, a type of rolling stock used on the PATH train in New York and New Jersey
- PA-1 (cell line), a human ovarian cancer cell line
- PA1 key, on the IBM 3270 keyboard
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