短语词组短语ocean n basin 海洋盆地ocean -basin floor 海洋盆底;洋盆区ocean floor basin 洋底盆地Ocean Engineering Basin 海洋工程水池margianl -ocean basin 边缘洋盆initial minor ocean basin 初始小洋盆central pacific ocean basin 中太平洋海盆 返回 ocean basin