采用了数字间隔方式，简化了初始校准的操作过程。
Have adopt the way of digital Span, has simplified the operation course of initial calibration.
若让循环间隔在一个合理数字(如，每7.5秒)内，你就有充足时间来处理这些输出。
If you keep your rotation intervals to a sensible amount (say, every 7.5 seconds) that should give you plenty of time to process the output.
这些数据库级的统计数字代表所有收集到的每个时间间隔内数据库调用指标的总计值。
These database-level statistics represent the aggregated values of all collected metrics for all calls to that database per interval.
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