它由构成分布式联邦的组件组成，其最小内核为分布式安全系统、发现与加入协议（discovery and join）、服务协议和查找服务（lookup service）。
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重要的是美国通过谈判达成一个它能加入的协议，因为再来一个与美国无关的协议将会挫败保护气候的努力。
It is important for the us to negotiate an agreement it can join, because another agreement that did not involve the United States would set back efforts to protect the climate.
就在早先几个小时前，在San Francisco的Web 2.0大会期间微软发布声明，称与Twitter和Facebook签署了合作协议，将在微软的Bing搜索结果中加入用户的最新状态更新信息。
Only a few hours earlier, Microsoft announced it had signed a deal with Twitter and Facebook to include its users' status updates in Bing's search results, at the Web 2.0 conference in San Francisco.
对美国承运人，还应该在与指定的美国旅行社签订的合同或协议中加入一个类似的遵守保证。
As a U. s. carrier, you must also include such an assurance of compliance in your contracts or agreements of appointment with U. s. travel agents.
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