維持 いじ可能 かのうセル速度 そくどでしょう
ijikanō serusokudodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 維持可能セル速度

1. Probably maintainable speed.; Likely sustainable velocity.

Polite
Presumptive
Conjecture
Computing