mineral extraction

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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