passivation [pæsɪ'veɪʃən]

例句:

• The development history of trivalent chromium passivation for zinc plating was overviewed.
  概述了镀锌三价铬钝化的发展历程.
  
• Fourththe main market Shenglang, KDJ random targets will be repeated high passivation.
  主升浪行情中, 随机指标KDJ会反复的高位钝化.
  
• Corrosion protection mechanism of rare earth passivation was stated.
  阐述了稀土钝化膜的防蚀机理.