结果表明：升高电池温度可提高PEMFC的性能及极限电流密度；
The experimental results show that the performance and limited current density of the PEMFC are enhanced with increasing operational temperature.
借助动态电位扫描分别研究了电流与施加电压的关系，极限电流与氧浓度的关系。
The relations between voltage and oxygen concentration of limiting current were investigated by dynamic scan, respectively.
极限电流密度的增大使阴极过电位增大，从而提高合金的形核速率，使沉积层晶粒的尺寸减小、显微硬度升高。
At the same time, the increase of over-potential results in the nucleating rate and the micro-hardness of deposits increasing, while the grain size deposits decreasing.
本文用电渗析法对模拟的L -谷氨酸废水进行了分离处理，对分离结果进行了分析，并就几种因素对设备的极限电流密度影响做了研究。
The wastewater of L-glutamic acid was separated by electrodialysis and the result of separation was obtained. The effects of several factors on the electrodialyzer's equipment were studied.
本文用电渗析法对模拟的L -谷氨酸废水进行了分离处理，对分离结果进行了分析，并就几种因素对设备的极限电流密度影响做了研究。
The wastewater of L-glutamic acid was separated by electrodialysis and the result of separation was obtained. The effects of several factors on the electrodialyzer's equipment were studied.
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