Last Updated：2025/11/29
Sentence
技術者は、原油精製で使用された不純で暗色の硫酸を危険廃棄物ドラムに移す前に慎重に中和した。
Quizzes for review
The technician carefully neutralized the sludge acid before transferring it to the hazardous waste drum.
See correct answer
The technician carefully neutralized the sludge acid before transferring it to the hazardous waste drum.
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