编辑同志: 我厂从1974年以来,经常使用黄铜铸造船舶推进器和其他类型的铸件。因黄铜内含有40%以上的锌,在熔炼后期产生大量氧化锌烟尘(ZnO)。工人吸入后口内有一种不正常的干渴和甜味感,刺激喉咙,难以忍受;有的同志还发冷发烧,数日后才能复原,工人们称为“打铜摆子”。每当阴雨 Editor’s Comrade: Since 1974, our factory often uses brass cast marine thrusters and other types of castings. Because brass contains more than 40% of zinc, a large amount of zinc oxide fume (ZnO) is produced in the later stage of smelting. After inhalation, the workers had an unusual thirst and sweetness in their mouths to stimulate their throats and intolerance. Some comrades also had chills and fever and could only recover after a few days. The workers referred to them as “bronze pendants.” Whenever it is rainy