recycling precious metals
回收贵金属
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Precious metals refining, scrap metal, recycling: they all share this same economic point.
FORBES: The Cash4Gold Bankruptcy: This Is The Basic Problem With Recycling
Recycling hazardous electronic equipment for material recovery (e.g. rare earth, and precious and other metals) in a manner which can substantially mitigate the hazards, entails significant costs.
FORBES: It's Easy Enough To Solve The Problem Of E-Waste
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