グロー放電 ほうでん発光 はっこう分光 ぶんこう ほうだろう
gurōhōdenhakkōbunkōhōdarō

Noun
Da Copula

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

1. Probably glow discharge optical emission spectroscopy.

Presumptive
Conjecture