Chineses criam método rápido e barato para extrair ouro de eletrônicos
[https://www.tecmundo.com.br/ciencia/409786-chineses-criam-metodo-rapido-e-barato-para-extrair-ouro-de-eletronicos.htm?utm_source=flipboard&utm_medium=activitypub ](https://www.tecmundo.com.br/ciencia/409786-chineses-criam-metodo-rapido-e-barato-para-extrair-ouro-de-eletronicos.htm?utm_source=flipboard&utm_medium=activitypub )
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