マイクロ 背景 はいけい放射 ほうしゃだったら
maikurowa haikeihōshadattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of マイクロ波背景放射

1. If it were the cosmic microwave background radiation; Were it the cosmic microwave background radiation

Tara Conditional