Tiong Ostrobothnia Tōa-khu
| Tiong Ostrobothnia Tōa-khu Keski-Pohjanmaan maakunta landskapet Mellersta Österbotten |
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| — Tōa-khu — | |||
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| Kok-ka |  Hun-lân
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| Bīn-chek | |||
| - Lóng-chóng | 5,706.39 km2 | ||
| Bāng-chām | www |
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Tiong Ostrobothnia (Hun-lân-gí: Keski-Pohjanmaan; Sūi-tián-gí: Mellersta Österbotten) sī chi̍t ê Hun-lân ê tōa-khu (maakunta).
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