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本文报告了家兔在热环境中吸入两种温度空气时产生的散热效应。结果表明，清醒家兔在温度４０℃环境中持续暴露时，气管温度（Ｔｔ）、食道温度（Ｔｅ）和直肠温度（Ｔｒ）持续上升。自Ｔｒ达４２℃至死亡，平均历时７５．３３±３．１５ｍｉｎ，在Ｔｒ达４２℃后吸入２０℃空气，Ｔｔ显著降低，Ｔｅ不升高，Ｔｒ上升速度减缓，比吸入４０℃空气对照组的存活时间平均延长约８７ｍｉｎ。吸入５℃冷空气，Ｔｅ和Ｔｔ显著降低的同时，阻止了Ｔｒ的上升，动物不死亡。提示，在热环境中吸入冷空气能显著增强呼吸的散热效应，预防或延缓热射病的发生有一定作用。
This article reports the cooling effect of rabbits when inhaling two temperatures of air in a hot environment. The results showed that tracheal temperature (Tt), esophageal temperature (Te) and rectal temperature (Tr) continued to increase when awake rabbits were exposed continuously at a temperature of 40 ℃. From Tr up to 42 ℃, the average death time was 75.33 ± 3.15min. When the temperature was up to 42 ℃, the Tt was significantly decreased, the Te was not increased, the Tr increased slowly, The average survival time of about 87min. Inhaled 5 ℃ cold air, Te and Tt significantly reduced, while preventing the rise of Tr, animals do not die. Tip, inhalation of cold air in a hot environment can significantly enhance the respiratory effects of heat, prevent or delay the occurrence of heat-ray disease have a role.