最終更新日：2024/08/04
The carburisations of the metal parts were done to increase their hardness.
正解を見る
The carburisations of the metal parts were done to increase their hardness.
編集履歴（0）
The carburisations of the metal parts were done to increase their hardness.
The carburisations of the metal parts were done to increase their hardness.
DiQt（ディクト）
無料
★★★★★★★★★★
