“trace element”的概念、定义、翻译、参考文献-科学参考

单词	trace element
释义	trace element Encyclopedia 工学食品配料释 trace element微量元素占人体总重量不到0.01%、每日需要量小于100毫克的元素。理学微量元素（地球化学）释 trace element微量元素在自然体系中含量低于0.1%的元素。 Astronomy trace element示踪元素 Biology trace element痕量元素；超微量元素
随便看	line deflection line density line disclination line-disjoint line displacement line distortion Line Drawing line drift line driver line element line element field line-ellipse intersection Line Embroidery of Lotus and Mandarin Duck Book line emission line emission cloud line emission nebula line entity line equation line feed line flyback pulse line formation line frequency line geometry line graph line grating

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