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为探索水泥混合尘对肺通气功能的不良影响,我们选择6个水泥厂作业工人进行肺通气功能改变的研究,现报告如下。 材料与方法 对象为水泥混合尘作业工人585名,其中男性342
In order to explore the adverse effects of cement mixed dust on pulmonary ventilation, we selected six cement factory workers to study the changes of pulmonary ventilation function, are as follows. Materials and methods The object is cement mixed dust workers 585, of whom 342 men