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在20°K情况下机械性能试验的经济性取决于低温工作室的效率(试验一次液氢的消耗量),还取决于低温工作室的可靠性及其制造工时。在较大的通用低温工作室内试验时[1]主要时间消耗(80%)和液氢消耗(达到
The economics of mechanical performance testing at 20 ° K depend on the efficiency of the cryogenic chamber (which tests the amount of liquid hydrogen consumed) and on the reliability of the cryogenic chamber and its man-hours of manufacture. In larger general-purpose low-temperature working chambers, the main time consumption (80%) and liquid hydrogen consumption (up to