充实和自定义中介可能需要访问其他场所的数据(或其本地副本)，例如服务提供者的业务单元。
Enrichments and custom mediations may require access to (or local copies of) data from other locales, such as the service provider's business unit.
客户端和服务端 SSL 端点之间不能加入其他中介。
No other intermediaries can be introduced between the client and the SSL endpoint on the service side.
这个包通常不是由用户直接使用，而是由服务器将其用作其他多数功能的底层中介。
This package typically isn't used directly by users, but serves as the underlying medium for much of the other functionality.
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