地熱 ちねつ貯留 ちょりゅう そうでしょう
chinetsu choryūsōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 地熱貯留層

1. Probably a geothermal reservoir.

Polite
Presumptive
Conjecture
Geology