Objective:To explore the effect of air pollution on pupil's illness-induced absence, pulmonary ventilation function, non-special immunity and relationship.
目的：探讨大气污染对小学生因病缺课、肺通气功能、非特异免疫功能的影响及其相互关系。
Objective:To explore the effect of air pollution on pupil's illness-induced absence, pulmonary ventilation function, non-special immunity and relationship.
目的：探讨大气污染对小学生因病缺课、肺通气功能、非特异免疫功能的影响及其相互关系。
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