dome of natural equilibrium

例句：

1. 1. The dome of the temple is a marvel of architecture.
   这座寺庙的圆顶是建筑艺术的杰作。
2. 2. The dome of the skyscraper is visible from the top floor.
   这座摩天大楼的圆顶从顶层可见。
3. 3. The dome of the stadium is made of reinforced concrete.
   体育场的圆顶是用钢筋混凝土建造的。