岩溶洞穴沉积物形成于湿暖、干冷交替的环境；
They formed in the environments of humid warm and dry cold climate in turns.
在中更新世早期，阳春地区的岩溶洞穴开始发育。
Inthe early middle pleistocene, the karst caves in Yangchun area began to develop.
本文主要论述预测岩溶洞穴分布位置和高程的新方法。
This paper mainly expounds a new method for predicting the distribution, especially the elevations, of karst caves.
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