自路透社去年11月首次报道钇供应吃紧以来，钇价已上涨约60%，较一年前暴涨约69倍，一些涂层生产企业开始对原料实行配给。
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But it's not just broadcasters who need connectivity. The fans inside a stadium or festival ground will use their mobile devices to contact friends, carry their tickets, navigate around the venue, and make payments.
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