這zhe種zhong便bian攜xie式shi的de小xiao工gong具ju可ke以yi使shi用yong燃ran料liao電dian池chi加jia熱re果guo汁zhi。隻zhi要yao家jia住zhu杯bei子zi的de側ce麵mian，它ta就jiu可ke以yi工gong作zuo。其qi溫wen度du記ji錄lu器qi標biao記ji可ke以yi通tong過guo改gai變bian顏yan色se來lai表biao明ming其qi溫wen度du範fan圍wei。