数九寒天,北风刺骨,天寒地冻,我国北方地区气温在零下20℃左右。在地球的两极则更寒冷,最冷的地方在南极,为零下88.3℃,被称为“世界寒极”。在月球的阴面,温度为零下160℃,在宇宙深处则更低,达零下270℃左右。那么,寒冷有没有尽头呢?有,这就是“绝对零度”,为零下273.15℃。这个“绝 Number nine cold days, the northerly winds, cold weather, the temperature in northern China at minus 20 ℃ or so. The poles on earth are colder and the coldest places are in Antarctica, which is minus 88.3 degrees centigrade and is called “the world's pole.” On the moon's lunar surface, the temperature is minus 160 ° C and lower in the depths of the universe, reaching about 270 ° C. So, there is no end of the cold there? Yes, this is the “absolute zero”, minus 273.15 ℃. This "absolutely