calderan. 破火山口學術名詞破火山口:海洋地質學、地質學火山臼:海洋地質學、地質學卡德拉:外國地名卡德拉軟體公司:資訊火山口:土木工程英文釋義a large crater caused by the violent explosion of a volcano that collapses into a depression