グロー放電 ほうでん発光 はっこう分光 ぶんこう ほうでしょう
gurōhōdenhakkōbunkōhōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of グロー放電発光分光法

1. Glow discharge optical emission spectroscopy; Probably glow discharge optical emission spectroscopy

Polite
Presumptive
Conjecture