路由器可以创建或维护一个包含可用路由及其状态的路由表，同时根据这些信息，利用距离和成本算法为数据包选择最佳路由。

A router may create or maintain a table of the available routes and their conditions and use this information along with distance and cost algorithms to determine the best route for a given packet.

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管理工厂的设备和厂房，维护主要设备，使之处于最佳状态。

To manage all plant utilities and building facilities, maintain all the key plant utilities in optimal status.

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