イオン交換 ではありませんでした
ion kōkandewārimasendeshita
1. It was not ion exchange.
Noun
#305656
1. It was not ion exchange.
1. pupil; disciple
1. diplomat
1. hedge
1. diplomatic mission; overseas diplomatic establishment
1. good feeling; good will
1. exchange; interchange
1. ion
1. high official