cupola patching gun

例句：

1. 1. The cupola of the bell tower is visible from the street.
   钟楼的圆顶从街道上可见。
2. 2.The architect designed a cupola that would add to the beauty of the building.
   建筑师设计了一个圆顶，以增加建筑的美丽。
3. 3.The construction workers were working on the roof of the new building with the cupola in place.
   建筑工人正在新大楼的屋顶上安装圆顶。