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1·The average PCD in Altay region was 0.205; the average PCP was the 38.12 pentad.

阿勒泰全区汛期降水平均集中度为0.205，平均集中期为第38.12侯。

2·The annual variation appears a tri-peak form in the curve of dekad- or pentad-hail days evolution.

从旬或候雹日演变看，冰雹年变化具有三峰型；