(帆船)船桅定位技術

The second mast aft of a sailing ship with three or more masts. 主桅有三根桅或更多桅帆船的第二根船尾桅

A platform enclosing the head of each mast of a sailing ship, to which the topmast rigging is attached. 桅樓，桅盤帆船上包圍著所有帆頭的平臺，頂桅索具就加結于其上

A sailing ship with from three to five masts of which only the foremast is square-rigged, the others being fore-and-aft rigged. 三桅船有三至五個桅桿且只有前部桅桿有橫帆裝置其余均有縱帆裝置的帆船