La0.6Ni0.4CoOx complex oxide catalyst was prepared by oxidizing the powder at high temperature in air.The preparation technology of bifunctional air electrode was investigated.是什么意思_La0.6Ni0.4CoOx complex oxide catalyst was prepared by oxidizing the powder at high temperature in air.The preparation technology of bifunctional air electrode was investigated.在线翻译_英语_读音_用法_例句