trace elements
英
美
- elements n.要素,元素;基本原则;恶劣天气element的复数形式
- trace n.痕迹;微量;踪迹v.追踪;描绘;找出根源
名词 trace element:
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an element that occurs at very small quantities in the body but is nonetheless important for many biological processes
- A trace element.
痕量元素,微量元素