| 词条 | Japan National Route 251 |
| 释义 | {{Infobox road |country=JPN |type=National |route=251 |maint= |alternate_name=国道251号 |map= |image=Japan National Route 251 near Hara castle ruins.JPG |length_km=148.2 |length_round= |length_ref= |established= |direction_a= |terminus_a= |junction= |direction_b= |terminus_b= |browse= }} National Route 251 is a national highway of Japan connecting Nagasaki, Nagasaki and Isahaya, Nagasaki in Japan, with a total length of 148.2 km (92.09 mi). {{commonscat|Route 251 (Japan)}}{{Japan-road-stub}} 1 : National highways in Japan |
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