essential trace element detail 必需微量元素
essential trace element including 人体必需微量元素
essential trace element of human 人体必需微量元素
Description Copper is an essential trace element.
铜离子测试盒说明铜是一种重要的微量元素。
Essential trace element is indispensable in maintaining body health.
必需微量元素在维持机体健康方面是不可或缺的。
Chromium is an essential trace element for organism and the essential ingredient to keep GTF's activity.
铬是人和动物所必需的微量元素，是GTF(葡萄糖耐量因子)的必要活性成分。
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