Every new protocol, application, and document should use UTF-8.

每种新的协议、应用程序和文档都应该使用UTF - 8。

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Protocol services provide transport level services, including authentication, document routing, and edge service functions for automated document interchange.

协议服务提供传输级服务，包括身份验证、文档路由和用于自动化文档互换的边缘服务功能。

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One should then seek to document the messaging protocol flows.

有个人这时应尝试记录消息协议流。

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