通过在数据计数器上设置过滤器和条件，很容易设置提醒。
It is easy to set up alerts by setting filters and qualifications on a data counter.
所有检索操作均会返回包含修订计数器的数据项。
All retrieve operations return data items that include the revision counter.
短期历史数据的性能计数器可以自动聚合在一起并用于长期趋势分析。
Performance counters of short-term history are automatically aggregated and can be used for long-term trend analysis.
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