最終更新日：2025/11/29
To restore the antique beam engine, the mechanic carefully repaired the sun and planet gear that translated the piston's reciprocating motion into rotation.
正解を見る
To restore the antique beam engine, the mechanic carefully repaired the sun and planet gear that translated the piston's reciprocating motion into rotation.
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）
