这只在客户端主体存在于服务平台用户注册表中时才能使用。
This will only work if the client principal exists in the service platform user registry.
许多这类的论坛平台不但不需要注册发帖，而且每一个发帖者都是匿名。
Many such boards require no registration for Posting, and every poster remains anonymous.
平台由网络教育资源注册中心、网络教育资源提供者和消费者三部分组成。
The platform consists of network education resource register center, network education resource provider and consumer.
平台由网络教育资源注册中心、网络教育资源提供者和消费者三部分组成。
The platform consists of network education resource register center, network education resource provider and consumer.
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