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	feeler feeler gage feeler pin feeless feel-good feeling feeling feelingful feelingless feelinglessly feelingly feelingness feeling tone feel in one's bones feel like feel no pain feel of feel one's oats feel out feels feel the helm feel up feely fee patent feer

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