Field emission stability and life time of CNT cathode is closely related with the vacuum level, thermal effects during the emission and the current transport capability.

影响碳纳米管阴极场发射稳定性和寿命的主要因素有真空度、场发射过程中的热效应以及场发射体对场发射电流的承载能力等。

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Depending on the choice of material for the anode, cathode, and electrolyte the voltage, capacity, life, and safety of a lithium ion battery can change dramatically.

根据阳极、阴极、和电解液材料的不同，锂离子电池的电压、容量、寿命、安全性会有很大的不同。

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As a key part that influents the TWT life, the basic relation between performance and structure must be clarified in order to develop high-performance cathode.

阴极作为影响行波管寿命的关键部件，其性能和组成结构之间的关系是研制高性能阴极的必须搞清楚的基本问题。

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