The stratigraphic column in this district includes all the Paleozoic formations.
这个地区的地层柱包括全部古生代岩系。
Sometimes stalactites and stalagmites grow so that they meet and form a column. Many caves are filled with strangely shaped rock formations that were built in this way.
有时，石钟乳和石笋不断长大，它们相会而形成石柱。许多洞穴中长满了这样堆积而成的奇形怪状的石头。
Sometimes stalactites and stalagmites grow so that they meet and form a column. Many caves are filled with strangely shaped rock formations that were built in this way.
有时，石钟乳和石笋不断长大，它们相会而形成石柱。许多洞穴中长满了这样堆积而成的奇形怪状的石头。
应用推荐