The residual electrolyte after separation flows back to electrolyzer. The catalytic membrane in air cathode is made of teflon and activated carbon through mixing and rollpressing.
空气阴极中的催化膜由聚四氟乙烯和活性碳混合压辊而成，催化剂根据电解液的酸碱性而选择。
2
I roll in all memories, pressing in the heart bottom, to that vicissitudes of life my material life make the last one time to return to.
我把所有的记忆叠起，压在心底，向那个沧桑了我的尘世作最后一次回眸。
3
All they had were two buttons. Pressing one would roll the snake closer.