氟缺乏或过剩均可引起疾病。
目的比较氟西汀与曲唑酮治疗抑郁症迟滞与精力缺乏症状患者的疗效。
Objective: To investigate the comparative efficacy of fluoxetine versus trazodone in depression with remarkable retardation and lack of energy.
对冶炼中有害元素钾、钠、氟、硫的控制还缺乏有效手段，致使出现高炉利用系数偏低、高炉不畅和造成环境的严重污染。
Control on harmful elements such as K, Na, f, s in smelting is short of effective measures, which results in BF capacity factor low, BF process not smoothly and serious environment pollution.
氟是一种重要的微量生命元素，环境中氟过量或缺乏都会导致机体产生疾病。
Fluorine is an important trace element closely related to health, and some diseases in living organisms may arise from the abnormal distribution of fluorine in the environment.
氟是一种重要的微量生命元素，环境中氟过量或缺乏都会导致机体产生疾病。
Fluorine is an important trace element closely related to health, and some diseases in living organisms may arise from the abnormal distribution of fluorine in the environment.
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