Other open systems such as the mails, the roads or the telephones come to perform a function in society that transcends their simple technical characteristics.

其它的开放系统，例如邮政、道路或者是电话都承担了一个超越它们本身简单技术特征的社会服务功能。

youdao

Just as telephones used to be differentiated from PCs, servers, and networks, so did security and alarm systems used to be viewed as wholly separate from it.

正如电话曾与个人电脑、服务器以及网络有所不同，安全及报警系统也被视为与IT完全不同。

youdao

For the new contract, Dell Perot Systems will continue to provide network operations, desktop services, email, information assurance, telephones, and connectivity to long-haul communications.

根据新的合同，戴尔perot系统公司将继续提供网络运营、桌面服务、电子邮件、信息安全保障、电话和长途通信。

youdao