前言 肯尼迪航天中心应用全身密闭式的干燥潜水服保护在事故现场营救宇航员的救生员,火箭发射剂有使他们中毒的危险,因其质地的不透气性和黑色的外表之故,此服装积留体热并容易吸收外界热量。极限水平的热应激危及救生员的工作能力。沉重的个人呼吸装具也妨碍救生员的行动。本文中报道一种新的采用65F变相材料(PCM)制造的降温背心,并将其与早期的使用32F冷却介质的降温背心相比较。方法 Foreword The Kennedy Space Center uses a full-body dry-type wetsuit to protect lifeguards who rescue astronauts at the scene of the accident, with rocket propellant at risk of poisoning them because of their impervious gas and black appearance, Stay body heat and easy to absorb external heat. Extreme levels of heat stress endanger the lifeguard’s ability to work. Heavy personal breath gear also hinders lifeguard activities. In this paper, a new cooling vest made of 65F PCM has been reported and compared with earlier cooling vests using 32F cooling medium. method