A BI 1mlN2O 0.5mlN2O 8mlN2O 4mlN2O (10%） (5%) (80%) (67%) 9ml02 9ml02 2ml02 2ml02 (90%) (95%) (20%） (33%) 0.5mlN20 4mlN2O 图1-15浓度效应示意图 返回返回