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.
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.
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