Selenium is an essential trace element and exists in the body in the forms of selenoprotein.
硒是生物体必需的一种微量元素,主要以含硒蛋白质的形式存在于生物体内.
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Selenium is an essential trace element that plays important roles in animal propagation and immune system.
硒对动物生殖发育、免疫系统具有重要功能,是动物必需微量元素.
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Magnesium is an essential trace element and has several critically roles in the body.
镁是一种人体必需微量元素,对人体健康有重要意义.
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