limestone cave
短語(yǔ)詞組
- limestone solution cave 灰?guī)r溶洞
- limestone cave disposal 溶洞處理
- limestone cave and funnel 溶洞與漏斗
- limestone cave leak 溶洞滲漏
- hidden limestone cave 隱伏巖溶
- Especially big limestone cave 特大溶洞
- treatment of special limestone cave 特殊溶洞處理 返回 limestone cave