any of the coils or turns in a spiral structure
(螺旋形结构的)盘管或拐角 ...a church spire poking above the trees. …伸出树梢的教堂尖顶。
The tower is designed to put the antenna at a maximum height on the spire.
电视塔的天线设计在塔尖的最高处。
The tower is surmounted with a spire.
该塔顶上装竖着塔尖。