Zack 和同事们结合了两个时间段的研究结果，以评估所观察的精神苦恼发病在地理上的模式。
Zack and his colleagues combined survey results from the two periods to assess geographic patterns in perceived mental distress.
另外，从两个时间段的综合数据来看，很多州发病率的地理差异很明显。
Moreover, multistate geographic patterns were evident for the combined two periods.
这两个时间段的出现时间与未来强震的震级呈一定线性关系。
There is some linear correlation between appearing time of the time stages and the magnitude of future strong earthquake.
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