In the Tianshuihai area, small pingos, unsorted circles, sand wedges and polygons, and other periglacial phenomena were identified.
在该地区发
小型冻胀丘、石环等冰缘象
存在。
，冰缘；冰缘区In the Tianshuihai area, small pingos, unsorted circles, sand wedges and polygons, and other periglacial phenomena were identified.
在该地区发小型冻胀丘、石环等冰缘象存在。
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