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south cardinal mark /ˈsaʊθ ˈkɑːdɪnəl ˈmɑːk/ n

中文：南界标

中文 · 南界标Español · señal cardinal del surFrançais · marque cardinale sud
Meaning：Buoy with two topmarks pointing downward that is placed to the south of a danger zone. cardinal marks
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Buoyage system region B

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