单词topmast
na.: 【航】中桅
网络: 顶桅；上桅；特马特
【航海】中桅
顶桅
桅顶杆
复数：topmasts
A platform enclosing the head of each mast of a sailing ship, to which the topmast rigging is attached.
桅楼，桅盘帆船上包围着所有帆头的平台，顶桅索具就加结于其上
A crowning spire was a key feature of the design from the beginning, including a topmast and a ring of spikes.
从一开始，最高的尖顶就是设计的关键特点，其中还包括了一座中桅和一圈小尖顶。