ore dressing

Từ điển Oxford Learners Wordfinder Dictionary

noun

crushing and separating ore into valuable substances or waste by any of a variety of techniques
• Syn:
mineral extraction, mineral processing, mineral dressing, ore processing, beneficiation
• Derivationally related forms:
beneficiate (for: beneficiation)
• Members of this Topic:
activating agent
• Hypernyms:
extraction