In the Tianshuihai area, small pingos, unsorted circles, sand wedges and polygons, and other periglacial phenomena were identified.
该地区发
大量小型冻胀丘、石环等
象
存。
川边
，；区In the Tianshuihai area, small pingos, unsorted circles, sand wedges and polygons, and other periglacial phenomena were identified.
该地区发大量小型冻胀丘、石环等象存。
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