短語詞組短語collapse of structure 結(jié)搆倒塌collapse e structure 塌陷搆造caldera -collapse structure 破火山口塌陷搆造fissure -collapse structure 裂隙塌陷搆造gravity collapse structure 塌陷搆造collapse structure with formation dissolution 地層溶蝕垮塌搆造structure collapse 結(jié)搆崩塌structure collapse analysis 結(jié)搆倒塌分析structure collapse rescue 結(jié)搆倒塌救援 返回 collapse structure