In all software and system development there are important constraints implied by the choice of languages, hardware, network topology, communications protocols and infrastructure, and so on.

在所有的软件和系统开发中都存在着通过语言、硬件、网络拓扑、通讯协议和底层架构等选择所带来的重要约束。

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The J2EE Server provides for network communications and security that can be configured to the needs of the system.

J2EE服务器为网络通信和安全性提供支持，它们可以根据系统需求进行配置。

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If your system USES SSL to secure communications, then you can capture the network traffic, but it is all encrypted, preventing you, the developer, from gaining any useful information.

如果您的系统使用SSL保障通信，那么虽然您可以捕获网络流量，但是这些数据都经过了加密，使开发人员无法从中获取任何有用信息。

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Meyer created a communications system that works on any telephone network and can be accessed on any mobile handset, PC or landline phone using voice messages, e-mail or SMS text.

FORBES: Magazine Article

With its own communications network, Cemex was no longer dependent upon the then-chaotic Mexican phone system.

FORBES: Cyber-cement

As a privately-owned civil communications equipment provider, we were the first company to establish an end-to-end network security system globally.

FORBES: Huawei's Open Letter To U.S. Investigators