main lower topgallant sail
/ˈmeɪn ˈləʊə ˈtɒpɡalənt ˈseɪl/
n
English · main lower topgallant sail中文 · 主桅下上帆Español · juanete mayor bajoFrançais · grand perroquet fixe avant
意味：Square sail between the main upper topgallant sail and the main upper topsail.