The star net structure is not very reliable, the whole net system will paralyze when some thing is wrong with the center joint.

星型网结构的可靠性低，当中心节点发生故障时会造成整个网络系统瘫痪；

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Our joint clean energy Research Center is funding new approaches to energy efficiency, clean coal — which we both need to deal with — and clean vehicles.

我们的清洁能源联合研究中心正在提供资金，针对节能、洁净煤——这方面我们两国都需要处理——以及清洁车辆开辟新的途径。

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The results are not in yet at the Joint Center, but there is a high level of confusion.

NPR: Examining the Future of Medicare

"That might not sound like a lot, but it is, " says Mr Bositis, of the Joint Center for Political and Economic Studies.

BBC: NEWS | Americas | White House hopefuls begin race

Dr. Gail Christopher, vice president for Health Women and Families at the Joint Center for Political and Economic Studies in Washington, D.

NPR: Examining the Future of Medicare