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日本2020年奥运会奖牌就位：从废旧手机等提炼金属
source link: https://tech.sina.com.cn/mobile/n/n/2019-07-11/doc-ihytcitm1272709.shtml
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2020年的奥运会将在日本举行，为了准备好这场盛会，日本奥组委也是在全力以赴。据日本媒体报道称，他们已经收集、提炼完成了5000枚明年奥运会和残奥会奖牌所需的再生金属，而制造金牌中所用的金属，都是废弃电子器械内提取。收集活动从2017年4月
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