英语词汇“trace element”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	trace element
释义	trace element n. 1. A chemical element present in tiny amounts: trace elements in ground water. 2. A chemical element required in minute quantities by an organism to maintain proper physical functioning.
随便看	cosmical cosmically cosmic dust cosmic inflation cosmic microwave background radiation cosmic noise cosmic ray cosmic ray air shower cosmic string cosmid cosmo cosmo- cosmochemical cosmochemist cosmochemistry cosmogenic cosmogonic cosmogonical cosmogonically cosmogonist cosmogony cosmographer cosmographic cosmographical cosmographically

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