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In the cold areas, almost all outdoor areas are covered with ice including the building surface, road surface as well as the rivers, which causes potential safety hazard to people’s life; therefore cleaning the ice is a very important task for people there. However it’s not always easy to clean the ice as some ice is fairly thick and hard to break through. Cleaning the ice could be dangerous as well as you may fall into the river if you are cleaning the ice on the slippery frozen river surface.
Dalian Minzu University