浮遊 ふゆう選鉱 せんこう ほうでしょう
fuyūsenkōhōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 浮遊選鉱法

1. Flotation method, likely.; Probably froth flotation.

Polite
Presumptive
Conjecture