Last Updated：2025/12/03
The laboratory technician was anionizing the sample to study its negative ion composition.
See correct answer
The laboratory technician was anionizing the sample to study its negative ion composition.
音声機能が動作しない場合はこちらをご確認ください
Edit Histories（0）
Source Sentence
研究室の技術者は負イオンを付与して試料のイオン組成を調べていた。
