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由行政管理部门建立和经营的，借助公用数据网而提供的一种数据传输业务。
A data transmission established and operated by an administration and provided by means of a public data network.
youdao
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由行政管理部门建立和经营的，借助公用数据网而提供的一种数据传输业务。
A data transmission established and operated by an administration and provided by means of a public data network.
youdao