Standard specification for circulating liquid and forced air patient temperature management devices 循环液体和加压气体的病人温度管理设施的标准规范
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The instrument is supported by a test fixture with cold - wall thermal radiators . copper coils attached to the radiators circulate liquid and gaseous nitrogen to vary the instrument temperature 感觉这个变温设备就像平常的暖气片一样，不过螺旋管中流动的是液态或者气态的氮。它还配备有变温和控温装置。
