steady heat transfer

例句：

1. 1.The steady stream of traffic has reduced the congestion on the road.
   交通流的稳定减少了道路上的拥堵。
2. 2. The steady growth in tourism has boosted the local economy.
   旅游业的稳步增长促进了当地经济的发展。
3. 3. The steady improvement in living standards is a testament to the country's progress.
   生活水平的稳步提高是该国进步的明证。