Titlebook: Cryocoolers; Part 2: Applications Graham Walker Book 1983 Plenum Press, New York 1983 Motor.cryogenics.design.development.electron.entropy.

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糾纏,纏繞

978-1-4684-4432-2Plenum Press, New York 1983

引導(dǎo)

Some Aspects of Design,the present limits of manufacturing technology and design technique. It would be presumptuous to suggest that this single chapter could contain an adequate summary of that experience. Rather, we have attempted a cursory introduction to some of the more important and obvious areas of concern.

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Very-Low-Temperature Cooling Systems,sed above 1 K. The vapor pressure of He. becomes too small below about 1 K to be of any use in a gas refrigerator. The isotope He. retains a reasonable vapor pressure down to about 0.3 K, but for lower temperatures liquid-vapor equilibrium cannot be used for refrigeration. Not only are the refrigera

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Book 1983. I had been impressed by the usefulness of leather cups in tire pumps and in Claude-type engines for air liquefaction. I was trying to find a way to avoid that part of the friction generated by a leather cup as a result of the radial force of the working gas on the cylindrical part of the cup. Duri

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