limestone cave

短语词组

短語

• limestone solution cave 灰巖溶洞
• limestone cave disposal 溶洞処理
• limestone cave and funnel 溶洞與漏鬭
• 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 特殊溶洞処理
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