The paper puts forward a new type of cryogenicrefrigerator proved to be nor- mal working by theoretical calculation and experimental demonstration.
在理论研究及实验论证的基础上，本文提出了一种新型的低温回热式气体制冷机。
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When the cryogenicrefrigerator works on this optimum cone Angle, the performance can be improved that means the decreasing of the lowest cooling temperature and the increasing of the cooling power.