以下为句子列表：
英文: Based on the energy band characteristics of ordinary negative electron affinity emitter GaAs, the design of lengthening the diffusion lengths of negative electron affinity emitter GaAs was presented, and the special negative electron affinity emitter GaAs
中文: 摘要根据通常负电子亲和势二次电子发射材料砷化镓的能级特点，提出延长负电子亲和势二次电子发射材料砷化镓的逸出深度的理论设计，设计出了特殊的负电子亲和势二次电子发射材料砷化镓。
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英文: Electron emission characteristics have been investigated for amorphous diamond films with low or even negative electron affinity.
中文: 摘要利用阴极电弧法分别在矽基板及镀有一层钐金属的矽基板上沉积非晶钻石。
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