使用批处理计算，业务逻辑与数据的接近程度将极大地影响性能。
With batch computing, the proximity of the business logic to the data significantly impacts performance.
手机也能建立自身的社交网络，这种网络可以基于对方与你的接近程度，向你提供同处一室之内所有联系人的信息。
Mobile phones could have their own social networks that prompt you with information about all your contacts based on their proximity to you in a room.
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