cold cathode materials 基本例句 冷阴极材料 As the key parts in vacuum microelectronic devices, field emissioncold cathode materialsplay a crucial role in the research and application of vacuum microelectronics.摘要场发射冷阴极材料作为真空微电子器件的核心部件,在真空微电子场发射的研究与应用中占有极其重要的地位。