A block has a storage capacity, and once it's used up, it can be closed and linked to a previously served block.
这种重资产模式在初期投入巨大,但在价格战进入白热化的阶段,它便构成了难以复制的成本护城河。
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4.5% for members of the UK armed forces, with 3.75% for senior military staff
Russell Brandom has been covering the tech industry since 2012, with a focus on platform policy and emerging technologies. He previously worked at The Verge and Rest of World, and has written for Wired, The Awl and MIT’s Technology Review.