物理 ぶつり信号 しんごう制御 せいぎょ ふく そうでしょう
butsurishingōseigyofukusōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 物理信号制御副層

1. Probably the physical signal control sublayer.

Polite
Presumptive
Conjecture
Computing