我们或许都有过这样的体验:炎炎夏日,由于玻璃窗的阻隔,射进房间的灼热强光更让人感觉好似闷在蒸笼里,心烦气燥;凛凛严寒,玻璃窗又仿佛一道厚墙,把和煦的阳光挡在了外面,令人感到室内阴寒无比。虽然空调的出现让人们摆脱了酷暑和严寒的侵扰,可它又给现代都市本来就稀缺的电力资 We may have had such an experience: the hot summer days, due to the blockage of the windows, the glowing glare into the room even more feels like stuffy in the steamer, upset gas; cold and cold, glass windows and a thick wall , The warm sunshine blocked in the outside, it is extremely cold indoors. Although the advent of air conditioning so that people get rid of the heat and cold intrusion, but it gave the modern city already scarce electricity