If road network is only designed for motor vehicle, the role of density of network cant be displaced by the sparse network with wide road.

即使优先考虑机动车的出行效率，路网密度所起到的作用也不可能通过宽而稀的路网来实现。

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In China, lightRadio Metro Radio will be deployed in busy indoor and outdoor locations, such as shopping malls and stadiums where coverage can suffer either from the large number of consumers trying to access a network, or because the density of buildings impedes the radio signal.

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PureSystems consist of high-density boxes configured by IBM with x86 or Power processors, storage, and network connections all wired and ready to install in a data center in hours rather than months.

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