Article discussed the wide-area protection concept , function and structure, and the configuration of communication network.
文章讨论了广域保护的概念以及广域保护系统的功能和结构组成、通信网络的配置。
Suitable for the area where request environment protection for surroundings, its function is remove over-spraying painting.
适用于对周围环境有环保要求的地区，其作用是去除过喷的漆物。
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