我们所生存的地球,由于存在着昼夜和四季的变化,人们不得不经受春夏秋冬和冷热寒暑的影响。其中,气温的变化直接影响着人的工效和安全。 我们知道,人体对高温的忍受能力是有限度的。长时间在高温下工作,人的体温调节就会失去平衡,导致工作效率下降,并产生不良的生理和心理反应, Because of the changes in the diurnal and the seasons, the Earth we live in, people have to withstand the influence of spring, summer, autumn, fall and winter and cold and hot and cold. Among them, the temperature changes directly affect human efficiency and safety. We know that there is a limit to the ability of the human body to tolerate high temperatures. Working at high temperature for a long time, people’s body temperature regulation will lose balance, resulting in reduced work efficiency and adverse physiological and psychological reactions,