生物 せいぶつ燃料 ねんりょう電池 でんちでしょう
biseibutsunenryōdenchideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 微生物燃料電池

1. Microbial fuel cell, probably.; It will likely be a microbial fuel cell.

Polite
Presumptive
Conjecture