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	lost motion lostness lost river lost-wax process lot lot lota lotah lote lotebush lotewood loth lotharingian lothario lothian loti lotibush lotic lotiform lotio lotion lotion lotio nigra lotium lotment

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