J - t loop is precooled by two - stage pulse tube cryocooler in order to obtain liquid helium temperature.
系统设计用两级脉冲管制冷机预冷小型节流制冷机以获得液氦温区环境。
The variation of the hyperfine interaction parameters and the variable mechanism of the sky-green glaze at liquid helium temperature is studied.
研究了在液氦温度下天青釉超精细相互作用参数的变化和参数变化的机制。
You take your room temperature liquid helium and you cool it with liquid nitrogen to 77 degrees Kelvin, the new, you're not quite there yet 77k unfortunately right?
首先要有常温的氦气,拿液氮把它冷却到77k，那个新来的7,你不坐在那儿，对吧？
The disequilibrium of the enthalpy difference of helium at liquid - helium temperature region results in that the temperature distribution in the regenerator of a GM refrigerator forms a platform.
由于在液氮温区附近氦气高低压焓差不平衡，导致G-M机蓄冷器中温度分布出现低温平台。
A good stability of temperature resistance values at the three-phase point of water is obtained when the thermometers are tested in liquid nitrogen, liquid hydrogen and liquid helium repeatedly.
给出了该温度计在液氮、液氢和液氦中反复锻炼后在水三相点温度时的阻值的稳定性。
The calculation shows that the pressure drops and the temperature decreases, but the gas rate increases from liquid helium main dewar to superconducting magnet dewar.
计算结果表明，氦工质从液氦主杜瓦加注到磁体杜瓦的过程中，其压力和温度不断降低，而 含 气量不断增加。
The calculation shows that the pressure drops and the temperature decreases, but the gas rate increases from liquid helium main dewar to superconducting magnet dewar.
计算结果表明，氦工质从液氦主杜瓦加注到磁体杜瓦的过程中，其压力和温度不断降低，而 含 气量不断增加。
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