生物 せいぶつ燃料 ねんりょう電池 でんちだろう
biseibutsunenryōdenchidarō

Noun
Da Copula

Expresses probability ("probably…") of 微生物燃料電池

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

Presumptive
Conjecture