fore-and-aft sails

sail的翻译中文意思-在线英汉词典 ... fission product sail 核裂变产物(推动)帆 fore and aft sails 纵帆 lower sail 降帆 ...

...帆桁，都用方形横帆 (square sails)，后桅用纵帆 (fore and aft sails)，桅与桅之间都用三角支索帆 (staysails)。