The results show that the dissolution of Ag was restrained by forming of a silver suboxide film on the surface under low oxidant concentration and atmospheric pressure conditions ( e.g., in NH_3-O_2-H_2O system); 结果表明,在常压下氧化剂浓度低时(如在NH3-O2体系中),浸取反应受在Ag表面上生成的氧化物膜所阻碍;