博客 ... gas source diffusion 气体源扩散 gas switching tube 开关管 gas valve 气体阀 ...
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gas filled switching tube 充气开关管
gas s switching tube 开关管
gas s filled switching tube 充气开关管
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A new type of refrigerator called pulse tube refrigerator with low temperature switching valve is suggested for applications such as gas separation and liquefaction.
首次提出了一种称为低温阀切换式脉冲管制冷机的新型制冷装置。
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