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isolated danger mark /ˈaɪsəlˌeɪtɪd ˈdeɪndʒə ˈmɑːk/ n

中文：孤立危险物标志

中文 · 孤立危险物标志Español · señal aislada de peligroFrançais · marque de danger isolé
Meaning：Buoy marking an isolated danger zone beyond which the waters are navigable.
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Buoyage system region B

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