depassivation meaning in English

去钝化

In this paper , rebar corrosion state was judged with three electrochemical nondestructive measuring technologies , i . e . half - cell potential , a . c . impedance and time potential . when the rebar was transformed from passivation to depassivation , it can obtain the chloride ions corrosion critical content through taking and analyzing chloride ions content around the rebar
本文利用半电池电位法、交流阻抗法和时间电位法三种电化学无损检测技术判断评估试件在试验过程中钢筋腐蚀状况，当钢筋由钝化状态转为活化状态时，取样分析钢筋周围氯离子含量，得到了不同技术条件混凝土的氯离子临界浓度。