surface ice

例句：

1. 1. The polar bears are known for their ability to survive in the harsh surface ice conditions.
   北极熊以其在恶劣的表层冰条件下的生存能力而闻名。
2. 2.During the winter season, the lake freezes over, leaving only the surface ice visible.
   冬季，湖泊结冰，只有表层冰可见。
3. 3.The scientists used a satellite to study the surface ice formation and melting processes in the Arctic.
   科学家们使用卫星研究了北极洲表面积冰的形成和融化过程。