最終更新日：2025/11/29
The inspector tapped the rust joint between the iron flanges to check that the packed mixture had oxidized into a hard, steam-tight seal.
正解を見る
The inspector tapped the rust joint between the iron flanges to check that the packed mixture had oxidized into a hard, steam-tight seal.
音声機能が動作しない場合はこちらをご確認ください
編集履歴（0）
