反射 はんしゃ減衰 げんすい りょうでしょう
hanshagen suiryōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 反射減衰量

1. Reflectance reduction amount, likely.; Probably the amount of reflection reduction.

Polite
Presumptive
Conjecture