我们一送上20集系列的全部故事大纲，我们给每一单集写上一到两句话长度的描述。
TARTAKOVSKY: Once we presented the overall outline covering the 20-episode series we wrote one- or two-sentence descriptions for each individual installment.
作为一个EJB，该单例可以访问标准的EJB中间件服务集——事务管理、安全、远程、依赖注入等等。
As an EJB, the Singleton has access to the standard set of EJB middleware services - transaction management, security, remoteing, dependency injection and so on.
提供了不同的输入文件集，每个文件集的大小不同，并在单节点和双节点集群中执行MapReduce任务。
Different sets of input files were provided, each of different size, and executed the MapReduce tasks in both single - and two-node clusters.
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