J - t loop is precooled by two - stage pulse tube cryocooler in order to obtain liquidheliumtemperature.
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。
2
The variation of the hyperfine interaction parameters and the variable mechanism of the sky-green glaze at liquidheliumtemperature 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。
3
You take your room temperatureliquidhelium and you cool it with liquid nitrogen to 77 degrees Kelvin, the new, you're not quite there yet 77k unfortunately right?