Authentication and identity systems provide the context used to discover the appropriate contract when the service is invoked, along with the invoked service itself.
认证和标识系统与所调用的服务一起提供上下文，当调用服务时，该上下文用来发现恰当的合同。
Authentication and identity systems provide the context used to discover the appropriate contract when the service is invoked, along with the invoked service itself.
认证和标识系统与所调用的服务一起提供上下文，当调用服务时，该上下文用来发现恰当的合同。
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