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在化学战条件下,战车乘员穿上不透气的化学防护服,车辆还要关闭门窗,又暴露在太阳热辐射底下,这种一个酷热条件,使乘员处于难以忍耐的热应激状态。为解决这个问题,美国军方早些时候研制了一种水冷服,它是专门针对身体特定部位降温的,例如水冷帽仅对头部降温而身体其它部位则顾及不到。最近又研制了一种气冷背心,它不但使胸部降温,还可同时向其它部位吹风,而且降温效率可以达到水冷服的水平。
Under chemical warfare conditions, tank occupants wore gas-tight chemical protective suits and the vehicles were shutting windows and doors and exposed to solar heat radiation, a hot condition that put the crew in unbearable heat stress. To solve this problem, the United States military earlier developed a water-cooled clothes, which is designed to cool specific parts of the body, such as water-cooled cap only the head cooling and the rest of the body can not take into account. Recently developed a gas-cooled vest, which not only to cool the chest, but also to other parts of the hair, and cooling efficiency can reach the level of water-cooled clothes.