数据包交换系统、方法，路由设备，数据包结构和产生方法。
Data pack exchanging system, method, route appts. data pack structure and generation method.
取而代之的是，建造世界性数据包交换系统的工作留给了五角大楼，他们设计了ARPANET——因特网的祖先。
Instead, the creation of a worldwide packet-switching system was left to the Pentagon, which devised ARPANET, the predecessor to the Internet.
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