然而，其中的原理并不限于通信提供商：可以应用于所有类型的服务提供商—银行、股票代理、公用事业公司等等。

However, the ideas aren't restricted to communications providers: They apply to all types of service providers-banks, stock brokers, utility companies, and so on.

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我们为房地产公司，公用事业公司或其他有线电视运营商等不同的客户规划、建设和运营宽带通信基础设施。

We plan, build and operate broadband communication infrastructures for different clients such as housing companies, public utility companies or other cable operators.

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邮政业是国家重要的社会公用事业，邮政网络是国家重要的通信基础设施。

In a country, postal industry is an important social public utility, and postal network is an important corresponding infrastructure.

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