商用 しょうよう電源 でんげん しき計算 けいさん だったら
shōyōdengen shi kikeisankidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 商用電源式計算器

1. If it were a commercially powered calculator; If it was a commercially powered calculator

Tara Conditional
Computing