英语词汇“index fossil”是什么意思，“index fossil”的读音、用法及例句翻译-烛光网

词汇	index fossil
释义	index fossiln.（名词） The fossil remains of an organism that lived in a particular geologic age, used to identify or date the rock or rock layer in which it is found. Also called guide fossil 标准化石：生存于某一特定地质年代的有机体所形成的化石，可以根据这种化石判定它所在的岩石或岩石层形成的年代也作 guide fossil
随便看	pendulous pendulum pendulum pendulums Penelope peneplain peneplained peneplaining peneplains peneplane penes penes penetrable penetralia penetrameter penetrance penetrances penetrant penetrants penetrate penetrated penetrates penetrating penetrating penetration

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