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will sometimes hear IBM's intermediate PIN called the "natural PIN," the one
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用户为实体硬件付费的意愿，天然高于为虚拟服务订阅付费，一个售价299美元的智能戒指，其价值是具体、可感知、且符合传统消费心智的，这为创业公司提供了最直接的启动现金流。
Josh Dury, from Bristol, photographed the phenomenon from a radar memorial in Worth Matravers, Dorset, on Tuesday just after 18:30 GMT.