Ostroh Koān
(Tùi Ostroh Koān (Rivne Chiu) choán--lâi)
Ostroh Koān (Ukraina-gí: Острозький район) sī Ukraina Rivne Chiu ê chi̍t ê koān (raion).[1]
| Ostroh Koān Острозький район |
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| — Raion — | |||
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| Kok-ka |  Ukraina
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|---|---|---|---|
| Chiu | Rivne | ||
| Bīn-chek | |||
| - Lóng-chóng | 693 km2 | ||
| Sî-khu | EET (UTC+2) | ||
| - Jo̍at--lâng | EEST (UTC+3) | ||
