Last Updated：2025/12/01
The engineer was de-energising the switchgear before performing maintenance to ensure safety.
See correct answer
The engineer was de-energising the switchgear before performing maintenance to ensure safety.
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
技術者は安全を確保するため、点検を行う前に配電盤の電源を遮断していた。
