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在炼铝、钢铁及磷肥等工业生产中,工人均不同程度地接触氟及其化合物,长期过量吸入含氟的化合物对机体的损害是多方
In aluminum, steel and phosphate fertilizer and other industrial production, workers have different degrees of exposure to fluorine and its compounds, long-term excessive inhalation of fluoride compounds on the body damage is multi-party