極性 きょくせいゼロ復帰 ふっき記録 きろくであれば
kyoku sei zerofukkikirokudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 極性ゼロ復帰記録

1. If it were a polarity-zero return record; If it is a polarity-zero return record

Ba Conditional