从“凉风洞”夏天结冰说起浙江省慈溪市农业机械学校励茂祥浙江诸暨有个“凉风洞”，浙江日报登文称：此洞夏天洞口凉风呼呼，好象洞内有无数风扇朝外猛吹，洞口清凉非常。三伏天大汗淋漓，一到洞口，汗水顿时消敛，浑身凉爽非常，未几便凉意难忍，无法久留。县志载，三伏... Speaking from the “cool breeze hole” in summer, talking about Zhejiang Cixi Agricultural Machinery School Li Maoxiang Zhejiang Zhuji have a “cool wind tunnel,” Zhejiang Daily Deng Wen said: this hole in the summer breeze whirring, as if inside the cave There are numerous fans blowing out loud, very cool hole. Three days of sweating sweat, one to the hole, sweat suddenly convergence, whole body cool, very few will be unbearable, unable to stay for a long time. County records, three volts ...