在山西省宁武县,有一个冰洞。让人奇怪的是:在四季分明的中部内陆省份,为什么会存在这么一个千百年不化且冬暖夏凉的神奇洞穴呢?一般认为,一年三百六十五天都是结冰的洞穴才被称之为冰洞。在世界上也只有像西伯利亚和南北极等地,少数纬度高而且是异常寒冷的地方才会出现冰洞,而且是数量少,规模小。 In Ningwu County, Shanxi Province, there is an ice cave. What makes people wonder is why there is such a magical cave with a thousand years of intemperance and warm in summer and winter in the four seasons of inland central provinces? It is generally believed that 366 days a year are icy The cave is called an ice cave. In the world only icebergs are found in places like Siberia and South and North Pole, a few high latitudes and unusually cold places, and they are small in number and small in size.