This is giving us a chance to define new models for performance tuning and capacity planning because you have such different types of Web "users" based on whatever the user happens to be doing.

这为我们调优性能和计划容量提供一个定义新模型的机会，因为 Web 用户的类型很多，可以根据他们正在做的事情进行分类。

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Tasks include planning and administering the database, tuning for performance and capacity, creating and maintaining indexes and optimizing queries, monitoring, and managing backup and recovery.

任务包括计划并管理数据库、调优性能与容量、创建和维护索引并优化查询、监测、以及管理备份与恢复。

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At present large capacity and demand compensation for detailed areas is generally the use of active plus passive hybrid, that is, a large-capacity passive filter compensation, active fine-tuning.

目前在容量大且要求补偿细致的地方一般使用有源加无源混合型，即无源进行大容量的滤波补偿，有源进行微调。

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