短语词组短語cave chemical deposit 洞穴化學沉積物cave collapse deposit [地質]洞穴崩塌堆積cave biotic deposit [地質]洞穴生物堆積longtanshan cave deposit 龍潭山洞穴堆積cave deposit and fissure -filling sequence 洞穴積裂隙堆積 返回 cave deposit