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Eskimo heat preservation Arctic reindeer microtherm Native American
03-01
Thermos mug heat preservation stainless steel
02-08
truck Refrigerated trucks Howo light card Card friends motor heat preservation snow leopard O'Bell Heavy trucks
12-31
Thermos mug Beijing Consumers Association heat preservation Beijing Consumer Association Cctv Luo Gang tentacle
12-16
![Obviously, it is an igloo made of snow, but it can be warmed by fire, how did the Inuit do it?[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)
