英语词汇“index fossil”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	index fossil
释义	index fossil noun : a fossil that is usually of narrow time range and wide spatial distribution and that is used in the identification of related geologic formations (as in locating new petroleum reserves)
随便看	metempsychosical metempsychosis metempsychosize metencephalic metencephalon metensomatosis metenteron metenteronic meteograph meteor meteor meteor- meteor crater meteor echo meteoric meteoric meteorically meteoric iron meteoric paper meteoric shower meteorism meteorist meteorital meteorite meteorite

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