分別 ぶんべつ蒸留 じょうりゅうでしょう
bumbetsujōryūdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 分別蒸留

1. Fractional distillation, likely.; Probably fractional distillation.

Polite
Presumptive
Conjecture