ガイガーミュラー計数 けいすう かんでしょう
gaigāmyurā keisūka ndeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of ガイガーミュラー計数管

1. Geiger-Müller counter, likely.; It's probably a Geiger-Müller counter.

Polite
Presumptive
Conjecture