| 释义 |
S52, S-52, or S.52 may refer to : - S52 (New York City bus), a bus line serving Staten Island
- Not recommended for interior use on large surface areas, a safety phrase in chemistry
- BMW S52, a 3.2 L M3 version of the M52 engine
- SIAI S.52, an Italian fighter aircraft prototype of 1924
- Sikorsky S-52, a 1947 helicopter
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