ExecuteReader 要求已打开且可用的 Connection。连接的当前状态为正在连接。 Karst In Limeston Quarry

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Karst In Limeston Quarry

Limestone quarrying is the primary threat to karst biodiversity in Southeast Asia where quarrying rates exceed those in other tropical regions Several socioeconomic political and scientific issues undermine the stewardship of these karsts

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