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（二）违反国家规定，收购铁路、油田、供电、电信、矿山、水利、测量和城市公用设施等废旧专用器材的；
，详情可参考heLLoword翻译官方下载
So, What is Blockchain?A blockchain is a distributed database shared between the nodes of a computer network. It saves information in digital format. Many people first heard of blockchain technology when they started to look up information about bitcoin.，这一点在夫子中也有详细论述
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Source: Computational Materials Science, Volume 267