The O3 concentration has close relationship with the solar radiation intensity and reaches to the maximum at 14:00 almost and decreases on night for the deoxidization reaction on each layer.

O3浓度与太阳辐射强度关系密切,各层均在正午14时前后达到最大,而夜间的还原反应使各层臭氧浓度下降。

The effect of Re element addition on the nitrogen content in the weld was insignificant due to the oxidization from the early deoxidization stage.

而由于稀土元素在先期脱氧中大量氧化，其脱氮效果较弱，稀土元素对熔敷金属的总含氮量的影响不显著。

The electrochemical performance tests indicated that dynamic performances of alloy electrodes were relatively preferable and the oxidation and deoxidization of hydrogen dominated electrode reaction.

电化学性能测试表明,合金电极的动力学性能较好,氢的氧化还原反应控制着电极反应。