这可以是使用一个移动平均量或者使用其他基于权重的模式来中和极端值。
This can be the use of a moving average or other weight-based scheme that moderates extreme values.
为了避免每月天气和其他临时因素造成的波动，数值应用了随季节调整的三个月移动平均年比率。
To avoid monthly gyrations caused by weather or other temporary factors, the figures use three-month moving averages of seasonally adjusted annual rates.
结论：移动平均比率法可以为我们提供较准确的预测数据，为医院管理提供决策依据。
Conclusion: Moving average rate method can provide precise data for us and it can be used for reference for hospitals management.
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