高圧 こうあつ蒸気 じょうき滅菌 めっきんでしょう
kōatsujōkimekkindeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 高圧蒸気滅菌

1. Probably steam sterilization.; Likely high-pressure steam sterilization.

Polite
Presumptive
Conjecture