For the ferroelectric cathode materials, the higher the electron emission density is, and the higher the electron energy is.
对于铁电阴极材料，电流发射密度是其关键性能指标。
Being a novel functional material, the ferroelectric cathode materials were studied well with the leaded materials for their high electron emission density.
铁电阴极材料，作为一种新型的功能材料，以其高的发射电流密度等优点而受到重视。
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