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扼要介绍了以１．１５千克／秒的空气泄漏率破坏液氦系统的真空时，液氦系统内升压情况及下部抽气板所需的安全膜和贮液室所需安全阀的具体计算方法。也介绍了液氦容器承受 ７×１０－３焦耳／（毫秒·厘米２）热／通量时，器壁升温的计算方法及结果。
A brief account of the pressure rise in the liquid helium system at the air leakage rate of 1.15 kg / sec and the safety valves required for the safety film and reservoir for the lower extraction plate method. The calculation method and result of wall temperature increase when the liquid helium container withstands 7 × 10-3 Joules / (millisecond · cm 2) heat / flux are also introduced.