低温泵的冷源是小型气体制冷机。
The mini-refrigerator is used as the condensation source of the modem cryopump.
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。
The paper puts forward a new type of cryogenic refrigerator 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。
The paper puts forward a new type of cryogenic refrigerator proved to be nor- mal working by theoretical calculation and experimental demonstration.
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