| 释义 |
M109 may be: - M109 howitzer, a self-propelled 155 mm howitzer
- M109 shop van (truck), a variant of a M35 2½ ton cargo truck
- M-109 highway (Michigan), a state highway in Michigan
- Messier 109 (M109), a spiral galaxy in the constellation Ursa Major
- Barrett XM-109, an anti-material weapon
- Suzuki Boulevard M109R, a motorcycle
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