The header section contains metadata for the entire message.

头部分包含整个消息的元数据。

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The SOAP message protocol defines a SOAP header section, where such information can be passed.

SOAP消息协议定义了一个SOAP报头，可以在其中传递这类信息。

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You can choose to protect just the BODY section, just the HEADER section, or both sections of your pages.

您可以选择仅保护页面的 BODY 部分、HEADER 部分，或者同时保护两者。

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In the text payload, a section called UDH (User Data Header) is optional but defines lot of advanced features not all mobiles are compatible with.

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