岩溶是地下水地质作用的过程和结果，是隧道建设面临的不良地质现象之一。
Karst is a process and result of groundwater geologic function and it is one of bad geological phenomenon facing tunnel construction.
岩溶是地下水地质作用的过程和结果，是隧道建设面临的不良地质现象之一。
Karst is a process and result of groundwater geologic function and it is one of bad geological phenomenon facing tunnel construction.
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