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Byrd Canyon () is an undersea canyon named for Admiral Richard E. Byrd. The name was approved by the Advisory Committee for Undersea Features in June 1988. ==References== * 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Byrd Canyon」の詳細全文を読む スポンサード リンク
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