The aging phenomenon coincided with oxygen absorption . 老化现象与氧的吸收密切相关。
2.
Results obtained from the test show that micro porous diffusers are superior to big porous diffuser in oxygen transfer performance index and oxygen adsorbent efficiency of the mixed liquor can be increased significantly 试验表明，中微孔曝气器的各种性能指标明显优于大孔曝气器，可显著提高混合液中氧的吸收率。
