The major difference between these two power generators is that the chemical energy of the fuelcell is converted directly to electrical power without intermediate conversion first to heat.
主要的区别在于，燃料电池的化学能量能直接转化成电能而不需要先转化成热能。
2
We use those microbes, particularly inside something called a microbial fuelcell (MFC), to generate electrical power.
“微生物燃料电池（简称缩写为MFC）”中的细菌可以产生电能。”
3
The method used by engineers at Pennsylvania State University however combines electron-generating bacteria and a small electrical charge in a microbial fuelcell to produce hydrogen gas.