Ponor
Ponor
a natural opening in the bottom of a karst sink or basin that absorbs surface waters and diverts them into the underground cavities of karst massifs.
| 单词 | ponor |
| 释义 | PonorPonora natural opening in the bottom of a karst sink or basin that absorbs surface waters and diverts them into the underground cavities of karst massifs. |
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