麦克唐纳·道格拉斯公司利用为卫星防热研制的热管技术,为美国阿拉斯加州油田通往阿拉斯加湾不冻港的800英里输油管,设计了一种不冻热管技术,保证了油管不致因冻土而破裂,为安全输油作出了贡献。热管的作用在于防止阿拉斯加油路经过的土地冻结,积雪的土地温度随季节变化, McDonnell Douglas used a heat pipe technology developed for satellite heat protection to design an unfrozen heat pipe technology for the 800-mile pipeline leading to the Alaska Bay ice-free zone from the Alaska oil field, ensuring that the pipe will not be damaged by permafrost Cracked, contributed to safe oil transportation. The role of the heat pipe is to prevent the Alaska oil road through the freezing of land, snow-covered land temperature changes with the seasons,