这些副本称为克隆，并用来管理资源负载。
These copies are called clones and are used to manage the resource workload.
因为在有未使用资源的网格中可以平衡资源负载，所以网格计算好像是负载平衡的一种极端形式。
Because the load of resources can be balanced in the grid with unused resources, grid computing is like an extreme form of load balancing.
因为在有未使用资源的网格中可以平衡资源负载，所以网格计算好像是SOA应用程序之间负载平衡的一种终极形式。
Because the load of resources can be balanced in the grid with unused resources, grid computing is like an extreme form of load balancing between SOA applications.
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