topgallant sail
短语un. 上帆 [网络] 上桅帆；顶桅帆；张顶帆
词形变化
topgallant sails
复数
topgallant sails
别名
t'garns'l
topgallantsail
释义与例句
n.
-
1.
square-rigged sail immediately above topsail -- sometimes divided in two
航海 交通