Graphite anode or Duriron anode(high silicon castiron anode) is more often used in deep well ground bed for cathodic protection,but they have some shortcomings.是什么意思_Graphite anode or Duriron anode(high silicon castiron anode) is more often used in deep well ground bed for cathodic protection,but they have some shortcomings.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句