短語(yǔ)詞組短語(yǔ)progressive offlap 漸進(jìn)退覆;前進(jìn)退覆offlap sequence 退覆層序marine offlap 海上退覆offlap p 退複staggered offlap 堦段退覆regressive offlap 退覆simple offlap 簡(jiǎn)單退覆offlap fault 平移斷層offlap slope facies 退覆斜坡相 返回 offlap