最終更新日：2025/11/29
The field team discovered a divisional plane between the granite and the overlying sedimentary layer, which explained the area's frequent landslides.
正解を見る
The field team discovered a divisional plane between the granite and the overlying sedimentary layer, which explained the area's frequent landslides.
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）
