gravity circulation of hot water

例句：

1. 1. The gravity circulation of hot water is crucial for maintaining the balance of the ecosystem.
   热水的重力循环对维持生态系统的平衡至关重要。
2. 2. The research on gravity circulation has greatly advanced our understanding of fluid dynamics.
   重力循环的研究极大地推动了我们对流体动力学的理解。
3. 3. The efficiency of the gravity circulation system in a power plant is a key factor in its performance.
   电厂中重力循环系统的效率是其性能的关键因素。