Objective in order to understand the effects of occupational exposure to fluoride on the body trace element and catalase in workers.
目的为了解氟暴露对工人机体微量元素及过氧化氢酶的影响。
Many studies have demonstrated that the damage of large accumulation of manganese, as a body trace element, is expressed mainly in the nervous system.
大量研究证明，锰作为机体微量元素，堆积后的损伤主要表现于神经系统。
Equilibrium of trace element includes equilibrium of all elements in human body and equilibrium of proportion among various elements.
微量元素的平衡包括整体元素在人体中的平衡，微量元素之间比例的平衡。
Trace life element has much more important Physiological function and nutritive action although it is possessed of 0.05% of man's and animals' body weight.
微量生命元素虽然仅占人和动物体重的0.05%左右，但它对机体有十分重要的生理功能和营养作用。
Sr, the necessary trace element for human body, is the normal comprisement of bones and teeth.
锶是人体必需的微量元素，是骨骼和牙齿的正常组成部分。
Fluoride is a trace element which human body need, but it can arouse injure on bone System if one who have taken in too much.
氟是人体必需的微量元素，但摄入过量能引起骨相系统损害。
Fluoride is a trace element which human body need, but it can arouse injure on bone System if one who have taken in too much.
氟是人体必需的微量元素，但摄入过量能引起骨相系统损害。
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