langbeinite

例句：

1. 1.The blue ice layer is a rare and fascinating phenomenon.
   蓝色冰层是一种罕见且引人入胜的现象。
2. 2. The blue ice layer has been found in the Antarctic region.
   在南极地区发现了蓝色冰层。
3. 3.The blue ice layer is formed by the slow melting of glaciers.
   蓝色冰层是由冰川缓慢融化形成的。