英语词汇trace element的意思、用法及释义-英汉双解词典

单词	trace element
释义	trace element substance occurring or needed only in extremely small amounts (esp in the soil, for the proper growth of plants) 微量元素, 痕量元素（尤指土壤中的, 植物正常生长所需要的）.
随便看	expense expense account expensive expensively experience experiment experimental experimentally experimentation expert expertise expertly expertness expiate expiation expiration expire expiry explain explanation explanatory expletive explicable explicate explicit

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