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

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	gombeen gombeen gombeen-man gombo gombo gombo hemp gombroon gombroon ware gombrun gombrun ware gomel gomeral gomerel gomeril gom-gom go missing gomma gommier gomontia gomorrah gom-paauw gom paw gomphocarpus gomphodont gompholobium

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