洞穴冰 cave ice；cave ices cave ices； cave ice； caveice
从阿拉斯加东南海岸岛屿的洞穴中提取的化石的放射性碳年代测定法表明，在最后一个冰河时代，该地区至少有一部分保持无冰状态。
Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.
距离奥地利萨尔斯堡南部40公里的森威尔特洞穴，是一个自然的石灰岩冰洞。
The Eisriesenwelt is a natural limestone ice cave located in Austria, about 40 km south of Salzburg.
克冰洞穴，朱诺，阿拉斯加。
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